The Long Earth

#Pratchat57 Notes and Errata

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These are the episode notes and errata for Pratchat episode 57, “Get Your Dad to Mars!“, discussing the third book in the Terry Pratchett and Stephen Baxter Long Earth series, The Long Mars, with guest Joel Martin.

Iconographic Evidence

(This is the section where we add pictures, where appropriate! Watch this space…)

Notes and Errata

  • The episode title is a reference to famous Mars sci-fi flick Total Recall – the 1990 original version, that is, directed by Paul Verhoeven, starring Arnold Schwarzenegger and Sharon Stone, and featuring the memorable line “Get your ass to Mars!” The film is (fairly loosely) based on the Philip K Dick short story “We Can Remember It For You Wholesale”. A slightly straighter film adaptation of the story was released in 2012, starring starring Colin Farrell, Kate Beckinsale and Jessica Biel was directed by Len Wiseman of Underworld fame. We talked a lot about Dick in #Pratchat56.
  • Joel was most recently a guest of the podcast in June 2021 for #Pratchat44, when we discussed the second Discworld novel, The Light Fantastic – three and a half years after he first appeared to discuss the first one, The Colour of Magic, in #Pratchat14.
  • You can find out more about The Dementia Centre at their website, dementiacentre.com, or you can find The Dementia Podcast at dementiapodcast.com. You can also just search for “The Dementia Podcast” in your podcast app or directory of choice.
  • We previously complained about the lack of war in The Long War in #Pratchat46, “The Helen Green Preservation Society”, with guest Deanne Sheldon-Collins.
  • Warhammer 40,000 – or “40k” for short – is the franchise of science fiction war and roleplaying games made by Games Workshop. A futuristic reimagining of their medieval high fantasy Warhammer setting, it has space alien versions of elves (Aeldari), undead (Necrons), orcs (er…Orks) and more. But the most famous factions are humans – specifically the genetically modified super-soldiers of the various chapters of Imperial Marines. These Space Marines are technologically enhanced stormtroopers fanatically loyal to their undying emperor, and full of more testosterone than strictly necessary. The franchise is still going strong with many tabletop and digital games currently available, despite its “Imperium of Man” being a fascist regime, and most of the other factions aren’t much better. In the “grim darkness of the 41st millennium,” there aren’t really any “good guy” factions, though the alien T’au Empire might come close. (Ben has seldom played, but his favourite faction – back in the second edition at least – were the weird Space Orks.)
  • Terry Pratchett died on the 12th of March, 2015. The last Discworld novel to be published before his death, Raising Steam, was released in November 2013, while The Long Mars was published on the 19th of June, 2014. His last three novels were the last two Long Earth books, The Long Utopia (18 June 2015) and The Long Cosmos (14 June 2016), and the final Discworld novel, The Shepherd’s Crown (2 June 2016).
  • A quick guide to the timeline of the Long Earth so far:
    • 2015 – “Step Day”, when Willis Linsay releases the plans for the stepper box on the Internet, giving the masses the ability to visit the Long Earth.
    • 2030 – “The Journey”, Lobsang and Joshua’s trip into the Long Earth which makes up the bulk of The Long Earth. The nuclear bomb in Madison goes off in this year.
    • 2040 – most of the events of The Long War occur in this year, including Maggie’s mission as captain of The Benjamin Franklin, the titular “war”, and the eruption of the Yellowstone supervolcano.
    • 2045 – the main events of The Long Mars are spread across this whole year.
  • The Long Mars was indeed originally titled The Long Childhood, but The Long Cosmos did not have an alternate title.
  • “Stoke Me a Clipper” requires a little bit of backstory: in the sci-fi sitcom Red Dwarf, one of the characters is uptight Arnold Rimmer, a lowly technician aboard the eponymous mining starship who died in an accident with the rest of the crew. Three million years later the Red Dwarf’s only survivor – David Lister, the only technician ranked lower than Rimmer – is awakened from cryogenic suspension by the ship’s computer Holly, who supplies him with company: a computer simulation based on a scan of Rimmer’s brain and projected as a hologram. Their rivalry gives Lister a reason to go on, despite the likelihood of every other human being being dead. In “Dimension Jump”, an episode of the fourth series first broadcast in 1991, the Red Dwarf crew meet “Ace” Rimmer, a version of Arnold from an alternate dimension who is a brave, sexy and successful hero; his catchphrase before embarking on a dangerous mission is “Smoke me a kipper, I’ll be back for breakfast.” Many years later they encounter him again, only this time he shares his secret: there isn’t just one Ace Rimmer, it’s a mantle passed from one alternate version of the Arnold to another, and now the hologram Arnold’s time has come. When he puts on the wig and outfit, he has to act brave, but managed to mangle the catchphrase as “Stoke me a clipper”. This happens in series seven, in the episode also titled “Stoke Me A Clipper”, first broadcast in 1997. (T-shirts featuring both versions of catchphrase were among many designs released at the height of the show’s popularity in the 1990s.)
  • The “Treaty on Principles Governing the Activities of States in the Exploration and Use of Outer Space, including the Moon and Other Celestial Bodies” – usually shortened to “the Outer Space Treaty” – was created in 1967 by the United Nations. All the major spacefaring countries then and now have agreed to it, and among its most important clauses is one stating that countries cannot claim sovereignty over any extra-terrestrial body. So while Frank would definitely have planted a flag, surely there’s no way he’d have tried to claim Mars for America – unless, of course, it’s been determined that the Mars of other universes doesn’t count? He’s also not acting on behalf of his country, and there’s been much debate in recent years about what the treaty means for private exploration of space. It does, however, make it clear that States are responsible for any activities conducted in space by their citizens, whether privately or otherwise, and says that outer space shall be “free for exploration and use by all States”, so we’ll have to see if that holds up.
  • Michael Fenton Stevens is an English actor and comedian. He started out in the Oxford Revue, where his cohort – which included Angus Deayton, Helen Atkinson-Wood and Geoffrey Perkins – followed the time-honoured British comedy pathway of doing an Edinburgh Fringe show which spawned a radio programme (Radio Active) and then became a television series (KYTV). He has since been a fixture around the 1980s guard of comedians, appearing in plenty of sitcoms and radio series, including the later instalments of The Hitchhikers Guide to the Galaxy based on the books. His most famous role, though, was probably as a voice artist for satirical puppet program Spitting Image, because he sang “The Chicken Song”. Released in 1986, this was an infamous parody of holiday disco dance pop songs like “Agadoo”, and was written by Red Dwarf scribes Rob Grant and Doug Naylor. It was #1 in the UK for three weeks and was performed live by the Spitting Image puppets on Top of the Pops. As well as reading The Long War series, he also reads the science chapters of the Science of Discworld books (as we’ll mention in #Pratchat59), and played the roles of Spider and one of the Ratcatchers in the 2004 BBC Radio 7 adaptation of The Amazing Maurice and His Educated Rodents, alongside David Tennant as Dangerous Beans.
  • The Expanse is a series of hard sci-fi novels written by “James S. A. Corey”, the pen name of Daniel Abraham and Ty Franck. They are set in the 24th century, imagining a future in which humans have colonised Mars and the asteroid belt, but in which “belters” who are born and live in low or zero gravity have become an exploited underclass, and Mars has declared independence from Earth, now ruled by a United Nations world government. The series begins with 2011’s Leviathan Wakes, and concludes with the ninth book, Leviathan Falls, published in 2021. Ben is mostly familiar with the popular television adaptation, also titled The Expanse, in which the characters are noticeably more argumentative. The long debates about what to do while in space are a result of the setting’s very realistic spaceflight; while the ships of its future have advanced engines capable of producing massive thrust, there’s no “artificial gravity” or “inertial dampening” technology. Changes in course while travelling involve “multiple G burns” which put enormous stress on the bodies of a ship’s crew, who have to be strapped into special chairs and have fluids injected into their bodies to protect them from injury or death.
  • We’ve discussed space elevators before in our episodes about The Science of Discworld (#Pratchat35) and The Science of Discworld II: The Globe (#Pratchat47), and we’ll see them again in The Science of Discworld III: Darwin’s Watch (#Pratchat59) and Strata (#Pratchat68). The origins of the concept go back to the late nineteenth century, with ideas of building towers tall enough to reach space, but the modern version – where a cable under tension is built down to Earth from a counterweight in geosynchronous orbit – was first described in the late 1950s. Despite this pedigree, they didn’t start appearing in science fiction until two decades later, with the earliest novels to feature space elevators being Arthur C Clarke’s The Fountains of Paradise and Charles Sheffield’s The Web Between the Worlds, published almost simultaneously in 1979. The elevator in Clarke’s novel is eventually built on Mars, and many novels set on Mars have featured space elevators too. Notable examples include Kim Stanley Robinson’s Red Mars, and Larry Niven’s Rainbow Mars – a collection of short stories which started life as a collaboration with Terry Pratchett! (For more about Larry Niven, see our Strata episode, #Pratchat68.)
  • Ben and Joel are both big fans of Disney’s 2012 science fantasy film John Carter, which previously came up in #Pratchat44. The film is an adaptation of 1912’s A Princess of Mars, the first of Edgar Rice Burrough’s Barsoom series, but it incorporates elements from later books as well. The novel is a classic of early space fiction, birthing the genre of “planetary romance”. Both the book and film feature American Civil War veteran and Confederate solider John Carter, who is mysteriously transported to Mars, known to its local population as “Barsoom”. Mars’ lower gravity gives him enhanced strength, and after becoming friendly with the local “green Martians”, Carter reluctantly gets involved in the conflict between the forces of two warring city-states of the “red Martians”. It’s pretty great fun, with very watchable performances from Taylor Kitsch as John Carter and Lynn Collins (who should be in way more things) as the Princess of the book’s title, Dejah Thoris. The script is a thoughtful and modern adaptation written in part by novelist Michael Chabon. It’s clearly set up as the first in a series of films, but it was hugely expensive, and was not commercially successful. Fans of the film often credit this to Disney’s failure to adequately market the film, which ironically seems to have been fuelled by their fears it wouldn’t succeed. (Ben often refers to it affectionately as Riggs Takes His Shirt Off on Mars – a reference to Taylor’s previous leading role in the television drama Friday Night Lights as teenage footballer Tim Riggins, and the number of films in which he takes his shirt off, including the infamously bad Battleship film, aka Riggs Takes His Shirt Off at Sea.)
  • The “Space Jockey” is the giant humanoid pilot of the crashed spaceship encountered in Ridley Scott’s 1979 film Alien, which is where the crew of the human space truck Nostromo encounter the titular alien. The name “space jockey” was a nickname given by the crew, but it’s also the title of an unrelated 1947 science fiction story by Robert A. Heinlein, about a human space pilot dealing with the everyday humdrum problems of ferrying stuff and people between Earth and the Moon. The space jockey itself remained entirely mysterious until the more recent (and much worse) Alien films, beginning with Prometheus, which reveal it was an Engineer – the species who created both life on Earth and the aliens themselves.
  • The ad where Martians use photorealistic printouts to fool a Mars rover was “Mars Mission”, made for Hewlett-Packard (not Canon, as we thought), and broadcast (we think) in 1996 and/or 1997. You can watch it on YouTube here.
  • Twelve humans have set foot on the Moon, all of them NASA astronauts. While Eugene “Gene” Cernan was the last person to stand on the Moon, he was also the eleventh, not twelfth, person to set foot there. This apparent contradiction is because he got out of the lunar module first, but got back in last, after his Apollo 17 crewmate, Harrison Schmitt. Cernan and Schmitt also spent the longest time on the Moon: over 12 days, they spent 22 hours and 2 minutes outside the module. Cernan died in 2017 (we wonder if anyone told him about the twain in The Long Mars?), but Schmitt is still alive at the time of this episode’s release.
  • We previously mentioned the 1986 My Little Pony: The Movie in #Pratchat21, “Memoirs of Agatea”. The “purple slime” was the “Smooze”, created by villain Hydia (played by Cloris Leachman!) to destroy the ponies’ home. It’s defeated by a magical wind created by the flying Flutter Ponies.
  • In Stanley Kubrick’s black comedy 1964 film Dr. Strangelove or: How I Learned to Stop Worrying and Love the Bomb, American Air Force Brigadier General Jack D. Ripper becomes delusional and goes rogue. He uses a code known only to him to order a nuclear bombing run on Russia because he believes they put fluoride in the water to corrupt the “precious bodily fluids” of Americans. His aide, Colonel Mandrake (one of three roles played by Peter Sellers), eventually deduces Ripper’s code from the paranoid ramblings in his notes, which repeat “purity of essence”. The film is a classic, and was based (if loosely) on the more serious novel Red Alert.
  • Ben says “less babies”, and yes, as “baby” is a countable noun, it should be “fewer babies”. He’s sorry about that.
  • When Ben’s talking about “older Star Trek”, he really means anything made before the new batch of shows that started with Star Trek: Discovery in 2017. Prior to this, the most recent Star Trek show was Enterprise, which finished in 2005. All of those older shows are set in the 22nd to 24th centuries, and yet include conventions of gender, sexuality and relationships which make them feel old-fashioned by today’s standards, making a little difficult to imagine they’re really set in the future. The exceptions often occur in alien cultures, rather than in the future humans – for example the Next Generation episode “The Outcast” tries to deal with the idea of stepping outside gender roles with a character who, like Cheery Littlebottom, comes from a culture which recognises only one gender, but who wishes to be female.
  • The thinking beagle in The Long War was not Snowy, but Brian – possibly named after the talking dog from American animated sitcom Family Guy. His speech about being weird for a beagle appears near the end of chapter 51.
  • Sam Allen appears in chapters 18 and 19 of The Long War; he’s in command of the squad who get stranded in Reboot when their gear is mistakenly delivered to the Earth next door, and none of them have brought steppers. He has a confrontation with Helen’s father, Jack Green, nearly starting a fight. Following the incident, Maggie puts him off her ship the first chance she gets.
  • Page counts and estimates tell us that The Long Earth is the shortest book in the series, at probably around 105,000 words, while The Long War is the longest by a fair margin (approx. 131,000 words). The Long Mars is the second shortest (approx. 110,000 words), with the final two books pretty close to the same length (each is somewhere between 116,000 and 118,000 words), with The Long Utopia the slightly shorter of the two.
  • Shangri-La is a Tibetan monastery nestled in a valley beneath the mountain of Karakal – both fictional locations drawn from the 1933 novel Lost Horizon by English novelist James Hilton. In the book, a party of four English and American folks crash their plane in the Kunlun mountains (which are not fictional) and find they way to Shangri-La, which is an idyllic paradise. The people living there age very slowly, living as long as 250 years, but if they leave the valley they age and die quickly. Looked at through modern eyes, the story has plenty of problems, not least of which that this supposedly Tibetan “lamasery” is revealed to have been founded by a Catholic monk, who as he is about to die, wishes one of the English visitors to take over as leader. (“Lamasery” itself is an erroneous term used in English for Buddhist monasteries in Tibet, based on the misunderstanding that “lama” means “monk”. Lama is actually a highly revered title, only given to very few Buddhists.) The book gained attention after Hilton’s next novel, Goodbye, Mr Chips (about the life of a schoolteacher) was a big hit. The concept of Shangri-La as a distant, utopian place has been a part of popular culture every since, and has inspired many stories – notably that of The Immortal Iron Fist, a white Marvel superhero who learns his supernatural martial arts after surviving a plane crash in the mountains of Tibet as a child and being brought up by the monks of the hidden mystical city of Kunlun.
  • Don’t Look Up is a satirical 2021 Netflix film in which a pair of astronomers (played by Jennifer Lawrence and Leonardo DiCaprio) discover a comet which will destroy all life on Earth, but struggle to get anyone to take the threat seriously. Its mix of dark humour and unsubtle climate change metaphors split audiences, many of whom thought it was clumsy. But there are plenty of things to like about it – including Mark Rylance’s role of Peter Isherwell, a tech billionaire who wants to mine the comet for rare minerals instead of destroying it.
  • The Pink Panther series of comedy films began with 1963’s The Pink Panther, directed by Blake Edwards, which focussed on the Phantom, a jewel thief played by David Niven. But Peter Sellers stole the show in his role as a bumbling French detective, Inspector Jacques Clouseau, so he became the main character for four increasingly oddball sequels between 1964 and 1978. A recurring gag that begins in the second film, 1964’s A Shot in the Dark, is that the Inspector has tasked his manservant Cato (Burt Kwouk) to attack him by surprise, to keep him in top fighting condition. Clouseau often survives these attempts on his life only because Cato stops to answer the Inspector’s phone when it rings… While Sellers is the best-known version of the character, there have been others. Blake Edwards went on to make three more Pink Panther films after Sellers’ death with new lead characters, though none succeeded. Earlier, in 1968, the company who owned the rights made their own separate Inspector Clouseau film without any of the original creative team, starring Alan Arkin. Most recently, a reboot of the series starring Steve Martin as Clouseau lasted for two films: The Pink Panther (2006) and The Pink Panther 2 (2009). A new film was in development in 2020, but there’s been little news of it since.
  • Professor Charles Xavier – known as Professor X – is a Marvel comics character, a powerfully psychic mutant who founds a school, ostensibly to help young mutants master their extraordinary powers. He does do that…but also recruits his young students to reform the image of mutants in the public eye by acting as a team of superheroes, known as The X-Men. This is necessary in part because Xavier’s fellow powerful mutant, Erik Lensherr – aka Magneto, Master of Magnetism – has decided to deal with prejudice against mutants more directly. He creates The Brotherhood of Mutants, more-or-less a terrorist organisation whose aim is to either force humanity to treat mutants as equals, or bow before them as their servants. (In early comics Magneto’s group were named “The Brotherhood of Evil Mutants”, just in case you were wondering if they know they’re being nasty.)
  • Brave New World is Aldous Huxley’s 1932 dystopian novel that imagines a future where humans are grown in artificial wombs, sorted into distinct castes based on physical and mental ability, and controlled through the use of drugs. Most castes are encouraged to be promiscuous to keep them happy, and the use of contraception is mandatory; they are also subjected to various forms of conditioning to get them to behave in the way the state approves, including encouraging children to engage in sexual play from a young age.
  • We mention a few classic sci-fi novels during our discussion of the Next:
    • The Chrysalids is John Wyndham’s 1955 post-apocalyptic novel in which a society practices eugenics to keep itself pure of mutations, and a group of children with telepathic abilities try to keep their abilities secret;
    • The Stepford Wives is Ira Levin’s 1972 “feminist horror” novel, in which a female photographer moves to a small town and is increasingly disturbed at the way all the women there are uniformly beautiful and subservient to their husbands;
    • The Midwich Cuckoos is another Wyndham novel from 1957, in which an English village suffers an unusual visitation in which all its residents are made unconscious, after which all the women of the village discover they are pregnant and later give birth to unusual and similar children;
    • A Clockwork Orange is Anthony Burgess’ 1967 dystopian novel, which we mentioned in #Pratchat55; it depicts a future where gangs of teens speak their own slang language and engage in random acts of “ultra-violence”, and the state tries a new form of aversion therapy on the protagonist;
    • The Sound of Music (which was not “the one with the children” Ben was thinking of) is the stage musical and subsequent film adaptation based on the 1949 book The Story of the Trapp Family Singers by Maria Augusta von Trapp.
  • When Liz says “a parasite like a Yeerk” she is referring to the alien foes of the shape-changing Animorphs, teenage protagonists of the Animorph books by K. A. Applegate published by Scholastic between 1996 and 2001. We’ve previously mentioned them in #Pratchat19, #Pratchat25, #Pratchat35 and #Pratchat43…though when we say “we”, we really mean Liz. Ben has never read an Animorph in his life.
  • In the various Stargate television series, the Goa’uld are a parasitic species who take humans for hosts, granting the body great strength and regenerative properties, and able to live for hundreds of years, changing hosts if necessary over time. Their true form is a snake-like aquatic creature, which wraps itself around the spinal cord of the host to gain access to their brain and motor functions. While the antagonistic Goa’uld System Lords believed they were superior to other lifeforms, using their advanced technology to pose as gods to the humans they sought to enslave, a breakaway faction called the Tok’ra lives in harmony with their hosts, and opposes the ways of the System Lords.
  • We mention a couple of hologram meetings from films that are similar to the one in the book. The first takes place in the 2014 film Captain America: The Winter Soldier (not The Avengers, though similar technology is later used in Avengers: Endgame), when Nick Fury meets with the World Security Council. The Star Wars one is the meeting of the Jedi Council in Star Wars Episode II: Attack of the Clones (2002).
  • It was indeed Mac talking about war being fun in The Long War, in the middle of Chapter 67.
  • George Armstrong Custer (1839-1876) was an officer for the United States in the American Civil War, though became most famously known for the Battle of Little Bighorn in Montana, in which he led American army forces against Native Americans and lost, dying along with his entire regiment. This has been romanticised as “Custer’s Last Stand”, and he is sometimes held up as an example of an officer whose decisions caused the death of those under his command. Whatever it’s called it remains an act of colonial aggression, and just one of many examples of Custer’s participation in violence against the First Nations peoples of America, including many incidents we would today regard as warcrimes.
  • There aren’t any other Cutlers who immediately come to mind, but it is a very common name; like many English surnames, it’s based on an occupation, in this case a maker of cutlery.
  • When Liz says it’s “just like Lord of the Rings” in reference to Joel’s use of the phrase “just to carry a nuke there and back again”, it’s a double reference – both to the Ring as an allegory for nuclear weaponry, and its prequel The Hobbit, whose full title is The Hobbit, or There And Back Again.
  • Foundation is Isaac Asimov’s series depicting a future history of a spacefaring human empire. The Foundation of the title is an organisation created by genius Hari Seldon to collect and preserve human knowledge, and prevent the coming of an extended dark age. Seldon does this thanks to his invention of “psychohistory” – an accurate mathematical modelling of society able to predict its future – which allows him to leave instructions for the Foundation on how to alter history’s course. Originally written as a series of short stories, collected into three novel-length books, Asimov later added four more novels, the last of which was published after his death. Foundation covers a vast span of time – about a thousand years – and so necessarily leaves many human characters behind after they die. It was hugely influential, both on science fiction and science, and is clearly one of the influences on The Long Earth series.
  • A Hohmann transfer orbit can be used to transfer a spacecraft between any two orbits around the same central body, so its not just for travelling between Earth and Mars. You could use this method to travel between any two planets in the solar system, or between a low-Earth orbit and the Moon.

Thanks for reading our notes! If we missed anything, or you have questions, please let us know.

#Pratchat46 Notes and Errata

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These are the episode notes and errata for episode 46, “The Helen Green Preservation Society“, featuring guest Deanne Sheldon-Collins, discussing the second instalment in The Long Earth series written by Pratchett and Stephen Baxter: 2013’s The Long War.

  • The episode title references the Kinks song “The Village Green Preservation Society“, and our own love for and defence of Helen Green (now Valienté). We previously mentioned the song – and Ben’s favourite cover version, by Kate Rusby – in our episode on Johnny and the Dead, #Pratchat34, “Only You Can Save Deadkind“. (See below for more on the album The Kinks Are the Village Green Preservation Society.)
  • We’ve covered all of the Discworld books Deanne mentions:
  • We link to Speculate in the episode’s podcast post, but it’s worth mentioning that both of your Pratchat hosts have appeared as panellists at both of the Speculate events held so far, in 2018 and 2019. Speculate co-director Joel Martin has also been a Pratchat guest three times, including for #Pratchat31, “It’s Just a Step to the West“, our episode on The Long Earth.
  • As discussed in #Pratchat31, Stephen Baxter is best known for his Xelee Sequence of space opera novels, and for writing the official sequel to H G Wells’ The Time Machine, The Time Ships. See the episode notes for #Pratchat31 for more information.
  • The next two books in the series are The Long Mars and The Long Utopia, not The Long Cosmos as Ben says; that’s the final book in the series.
  • There’re some hints as to how the Long Earth series was planned in Chapter 18 of Marc Burrows’ The Magic of Terry Pratchett. Pratchett and Baxter planned out the series as a five-book arc when they first decided to write it together; no specific date is given, but this seems to have been around 2010 or 2011. It was a true collaboration, each contributing writing, and editing the other’s work, and complete drafts of the final three novels were finished in 2013. Baxter did the final polishing and tweaking of those books while Terry worked on his final solo projects, though he did visit Pratchett once or twice for more ideas.
  • Monica “Spooky” Jansson disappears for about 160 pages in Ben’s paperback edition. After Chapter 1, she’s not seen again until Chapter 23.
  • Given the rough timeline available from The Magic of Terry Pratchett, it seems likely that The Long War was indeed being written in 2011 and 2012.
  • We don’t think we ended up coming back to it, but there is a hint that there might be another direction in which to step. In Chapter 54 Bill recounts a story to Joshua about a comber who, on a bet, spent the night drunk and naked on “the Cue Ball”, a Joker Earth whose surface is weirdly featureless and smooth. Spooked by a sound the next morning, he tried to step while hungover and claims he stepped not East or West, but in some other direction… No doubt this will either never be heard of again, or form the entire basis of one of the sequels.
  • Leukaemia – originally Leukämie in German, from the Greek words leukos (λευκός), “white”, and haima (αἷμα), “blood” – is the collective name for a number of forms of blood cancer. It usually begins in bone marrow, where blood cells are manufactured, and the risk of contracting the disease does increase with exposure to radiation. There are four main types of leukaemia, with many sub-classifications, but Spooky’s specific diagnosis is not specifically mentioned – indeed, the word “leukaemia” is only mentioned once in the entire book, in Chapter 23.
  • The first book starts with Step Day in 2015, but most of the action – including all of “The Journey” – takes place in 2030, with flashbacks to various events in the fifteen years between. As we later mention, this book takes place 25 years after Step Day, in 2040.
  • For the record: Helen is 18 in 2031 when she marries Joshua, who is 29. Liz and her maths are right when she says they met the year before, a meeting which occurs in chapter 50 of The Long Earth.
  • The American War of Independence, aka the American Revolutionary War, was fought by citizens of the then thirteen British colonies in America between 1775 and 1783. The Declaration of Independence was signed by representatives from the colonies, who gathered in a “Continental Congress”. We could go on, but there is a lot written about this stuff on the Internet, so we’ll let you do your own research. Ben does mention the Boston Tea Party, which was a protest by a group called the Sons of Liberty against laws which allowed the East India Company to sell tea in America without paying the same taxes levied on citizens of the colonies. A whole shipment of the company’s tea was thrown into Boston harbour, and while the Sons of Liberty had a good point, it still stings to know all that good tea went to waste…
  • “Old Faithful” is one of several geysers in Yellowstone National Park, Wyoming. A geyser is formed when an underground reservoir of water is close to a volcanically active area; the water is heated by magma, turning into steam, and enough pressure forms to force the cooler water on top out of a vent at the surface. Old Faithful erupts every 44 minutes to two hours, but even that amount of variation is unusually predictable – a result of it being relatively separate to the other geysers and geothermal systems in Yellowstone. It’s been recorded erupting more than a million times, but like all geysers it is not a permanent feature. The Yellowstone Caldera is the most active volcanic system in the United States, and is thought to have had three major eruptions occurring 2.08 million, 1.3 million and 631,000 years ago. Its most recent eruption was much more minor: a lava flow that happened 70,000 years ago. Geologists seem to be of the opinion that a “super-eruption” like the one 1.3 million years ago is very unlikely, though it will erupt again at some time in the future.
  • When Ben says “your brain’s not fully cooked” until you’re 25, he is quoting Dr Karl Kruszelnicki, the Australian science communicator. Dr Karl – not to be confused with the other Dr Karl, the fictional medical doctor from Neighbours – has been broadcasting mostly via ABC radio since 1981, and has written 47 books, mostly collections of short articles about popular science. He often talks about the fact that human brains are still developing well past the teenage years, though he more recently has given the age of 20-23 for when the brain is “fully cooked” – i.e. when cognitive development is thought to have completed. You can find Dr Karl’s various books, podcasts and more on his website.
  • Joshua and Helen meet in Chapter 50 of The Long Earth. Unlike most of Helen’s story in that book, it’s not written from the perspective of her diary, though something we didn’t mention was that Joshua is already famous well before setting off on “The Journey”, as he saved dozens of kids on Step Day who got lost on a stepwise Earth. Upon meeting him, Helen exclaims “The Joshua Valienté…” and starts to blush. To be fair, they’ve heard of her, too: her diary is actually a blog, and is read by many folks. Joshua thinks that she is “kinda cute”, and also likes the look of Reboot, considering it the kind of place he could live.
  • Sally makes it clear to Joshua that they will only be friends in Chapter 43 of The Long Earth, where she says: “Joshua, you are fun to know, and a good companion, reliable and all that, even if you are a little bit weird. Someday we might be friends. But please don’t make comments about my legs. You’ve seen very little of my legs since most of the time they are inside premium grade thorn-proof battledress. And it’s naughty to guess, OK?”
  • The thing about Ghostbusters not being comedy came about in the wake of the latest trailer for the upcoming sequel, Ghostbusters: Afterlife, which at first had many fans asking where the comedy was! In response, many younger fans came out to declare surprise that anyone would think the original was a comedy, and so a Twitter trend was born.
  • Tim Ferguson is the source of Ben’s figure that comedy requires four laughs per minute, on average – but you won’t find this specific pearl of wisdom in his book The Cheeky Monkey. Ben actually picked it up in one of Tim’s online sitcom writing workshops, which he runs semi-regularly.
  • Our previous episode was #Pratchat45, “Hogswatch in Grune“, which discussed Pratchett’s short story “Twenty Pence, with Envelope and Seasonal Greeting”.
  • The Snowpiercer television series, released on Netflix in May 2020, is based on the 2013 South Korean-Czech film Snowpiercer directed by Bong Joon-Ho, of The Host and Parasite fame. The “Snowpiercer” is a high-speed train that circumnavigates the globe, now covered in snow after an attempt to alter the atmosphere and reverse climate change went wrong and plunged the world into a new ice age. The train is segregated, with poor workers stuck in the rear carriages while the wealthy elite enjoy luxury in the forward cars. The film stars Chris Evans as a leader of a revolt by members of the tail section, and also features Tilda Swinton, Song Kang-Ho, Jamie Bell, John Hurt and Ed Harris. The series is a retelling, not a sequel, and stars Daveed Diggs and Jennifer Connelly as analogous characters to Evans and Swinton, respectively. The series and the film are both adapted from the French graphic novel Le Transperceneige; the first volume was published in 1982 by writer Jacques Lob and artist Jean-Marc Rochette, with later volumes by Rochette and Benjamin Legrand in 1999, 2000 and 2015.
  • All jokes aside, helium really is a precious resource – liquid helium is an important coolant used in industry and scientific work, and indeed party balloons account for only 10% of the world’s helium use. Or at least they did, before the pandemic. Helium demand has lessened in other industries, where fears of running out had led to caps and rationing, but while availability has improved in the last year, prices are still at an all-time high. Accordingly, plans are underfoot to try and recycle and reuse helium, and stop it from being lost to the upper atmosphere.
  • “Bosun Higgs” is a reference to the Higgs boson, a fundamental particle very important to the Standard Model of physics. Bosons are particles which carry forces, and differ in many ways from fermions, the particles that make up mass. Other bosons include photons (electromagnetic force), gluons (the strong force which holds quarks together) and gravitons (the still-theoretical particles which propagate gravity). Higgs bosons are produced by the Higgs field, which gives other particles mass. The Higgs boson is the subject of Leon Lederman’s 1993 book The God Particle, though It was proposed as an explanation for mass by Peter Higgs and his team in 1964, but remained theoretical as while it is massive compared to other bosons, it is also highly unstable and quickly decays. Its existence was confirmed in 2013 by scientists working with the Large Hadron Collider, and Higgs and François Englert were awarded the Nobel Prize for Physics for their work on the boson in 2013.
  • While the September 11 terror attacks certainly had a big impact on air travel restrictions, these were really a tightening of security measures brought about in the 1970s because of the frequency of aeroplane hijacking in the 1960s. These were extraordinarily common in the wake of the Cuban revolution, and especially so between 1968 and 1972. The security measures started in 1969 with profiling of passengers, asking individuals to submit to questioning and personal metal detector tests. The first metal detectors used for everyone were introduced in 1970 in Louisiana; this became a nation-wide practice in the US in 1973, with X-ray screening of baggage added in 1974. These measures spread to the rest of the world during the 1970s by agreement of the International Civil Aviation Organisation, which establishes internationally agreed rules for civilian air travel. Since 2001, additional security measures have included “random” chemical tests of passenger clothing and baggage for explosives (ask your brown friends how random it feels to them), the requested removal of shoes, coats and hats during security screening, and the use of full-body scanners, though these have been controversial.
  • For many years Australia has had incredibly harsh policies regarding the treatment of refugees and asylum seekers, especially those who arrive by sea. As well as indefinite detention – mostly offshore – a particular claim of the last few (conservative) Liberal-National coalition governments has been that they “stopped the boats“, a phrase particularly loved by cabinet minister Peter Dutton, previous Prime Minister Tony Abbott, and current PM Scott Morrison – who infamously has a trophy in the shape of boat, gifted by a supporter, bearing the legend “I stopped these”, from his time as Immigration Minister. The government frequently claims that the inhumane treatment they meet out to asylum seekers is meant to deter any more from coming, and thus stop the predatory people smugglers who charge them outrageous sums of money to make the dangerous journey. They’ve claimed now for many years that the boats have stopped, when the truth is that they have not – they are merely being intercepted at sea by the Australian Navy as part of “Operation Sovereign Borders” and so are not reported as “arrivals”. The pressures in nearby countries forcing desperate, persecuted people to try and reach safety by any means have not gone away, and those are the main factors. And yet cruel policies of long, indefinite detention, lack of support, denial of long-term visas and vilification in the media continue, as a way to court the votes of those who approve of strong border protection. It’s a source of shame for many of us in Australia; if you’d like to support the plight of asylum seekers in Australia, please consider supporting a couple of our favourite charities: the Asylum Seeker Resource Centre and RISE.
  • Brexit – the removal of Great Britain from the European Union – really started becoming a thing in the early 2010s, though the first floating of a public referendum on the topic wasn’t until early 2013. It was a promise of Conservative Party Prime Minister David Cameron that he would bring about such a referendum if he won the 2015 general election, so while the idea was around when The Long War was being written, it seems unlikely it was a major influence on the novel.
  • We discussed Terry’s own favourite of his books, Nation, in #Pratchat41, “The Adventures of Crab Boy and Trouser Girl“.
  • For more on Pratchett’s first use of “Jokers“, see our episode on The Dark Side of the Sun – #Pratchat18, “Sundog Gazillionaire“.
  • The kobold Finn McCool is named after one of the great heroes of Irish mythology, Fionn mac Cumhaill. His adventures form the Fenian Cycle (an Fhiannaíocht in Irish), and also feature his people, a band of warriors known as the Fianna. His exploits are too numerous to go into, but form a cycle of stories as vibrant and exciting as those of King Arthur or Hercules. Ben recommends having a read.
  • “Kink-shaming” is pointing out someone’s kinks (specific sexual interests) with the intention of embarrassing them, often as supposed evidence that they are not a good person or have something “wrong” with them. This is not a new practice, but has in recent years been highlighted for the damage it does: it makes people ashamed of their kinks, and thus less likely to embrace the things that will satisfy them; it reinforces the idea that only regular “vanilla” sex is acceptable; and it conflates harmless (when consensual) kinks and fetishes with actually harmful behaviours, derailing serious conversations we need to be having. It’s more or less the opposite of the sex-positive movement, which seeks to reinforce a healthy embrace of positive sexual communication and behaviour.
  • The Kinks were a English rock band formed in Muswell Hill by brothers Ray and Dave Davies in 1963. The original line-up featured Ray, Dave, Pete Quaife and Mick Avory; Quaife left in early 1969, but the other three remained members throughout the group’s subsequent history and several alternate line-ups, including talk in the last few years of a reunion album. Their last public performance was in 1996. The bands’ biggest hits include “You Really Got Me” in 1963 from their first album Kinks, the single “Dedicated Follower of Fashion” in 1966, “Waterloo Sunset” from 1967’s Something Else, and “Lola” from 1970’s Lola Versus Powerman and the Money Underground, Part One. The album The Kinks Are the Village Green Preservation Society was a passion project of Ray Davies, a concept album released on the 22nd of November 1968 – the same day as The Beatles, aka The White Album. It was the last album on which bass player Pete Quaife played. Its production was quite long, and late in the process Ray Davies asked for the release to be postponed so it could be expanded into a double-album, but only got permission from their record label to add three more tracks. The “twelve-track mono version released in Europe” mentioned by Bill in the novel was the original shorter version, released in France, Sweden, Norway, New Zealand and Italy, but never in the UK, making it a bit of a rarity, with a different line-up of songs and some alternate, earlier mixes.
  • Local examples of the kind of “Instagram experience places” Ben is thinking of include Sugar Republic (giant candy props) and ArtVo (large-scale perspective art you can photograph yourself in).
  • Bounce, the “trampoline place” mentioned by Deanne, is one of many indoor trampoline parks around Melbourne and indeed the world. Their website says they’re part of a “global freestyle movement”, though we struggled to find out where this idea comes from. Basically it’s like BMX or skateboard stunts but without a vehicle, performed while jumping on a trampoline, jumping off and running up walls and so on. Bounce has several outlets, but there are also other businesses offering similar experiences.
  • That cat you can hear meowing in the background is the fabled third Pratcat, Kaos, who has lived with Ben since late December 2020. Despite what he would have you believe, he is fed five or six times every day, and not once a century when the Moon is in the Eighth House…
  • We discussed The Fifth Elephant – where Vimes is hunted by the von Überwald werewolf clan – in #Pratchat40, “The King and the Hole of the King.”
  • Ben is probably wrong to say that English is not the majority language of the world – but it depends how you count it. According to stats published by the language reference journal Ethnologue, Mandarin Chinese has about 921 million native speakers, Spanish 471 million, and English 370 million. But if you include folks who speak it as an additional language, English edges into first place with 1.348 billion speakers, compared to Mandarin’s 1.21 billion and Hindi’s 600 million (with Spanish having a total of 542 million speakers worldwide).
  • The Beagle matriarch, Granddaughter Petra, is presumably named after Petra, the first pet featured on long-running British children’s program Blue Peter. Petra, a dog of indeterminate breed, joined the show in 1962; when Peter Purves (previously of Doctor Who fame) became a presenter in 1967, he also became Petra’s permanent handler to help her be more comfortable in the studio, and she lived with him when not filming – an arrangement used with presenters and crew for all subsequent Blue Peter dogs. She died in 1977, and was commemorated by a bust at BBC Television Centre (later moved to MediaCityUK). She was followed by the most famous Blue Peter dog, Shep, a border collie who stayed with the show from 1971 to 1978 and was famously attached to presenter John Noakes, who often had to tell him to calm down while trying to present. The current Blue Peter dog is a beagle/basset hound cross named Henry, and the programme has also had cats, tortoises and parrots as pets.
  • Ben briefly mentioned the Kromaggs, antagonists from the 1995 US parallel universe TV series Sliders, in our episode on The Long Earth. They are also non-human ape-descendants, though presumably their ancestor was Cro-magnon man, giving rise to the name. Their society is technologically advanced and militaristic; they have flying craft that can “slide” between parallel worlds, and when first encountered they have conquered around 150 Earths, stripping them for resources and enslaving their human populations. It is revealed in later seasons that they originally came from a world where they lived alongside humans, but when they grew violent they were exiled using sliding technology and prevented from returning. This becomes part of the back story of the protagonist Quinn Mallory, though by the later seasons multiple cast changes and shifts in tone and focus had lost a lot of early fans. (Ben mostly dropped off around the end of season three.)
  • The “love languages” are a popular way of describing the ways in which humans express and receive love, made famous by Baptist pastor and radio host Gary Chapman in his 1992 book The Five Love Languages: How to Express Heartfelt Commitment to Your Mate. Of the original five, we mention “Acts of Service” (doing things for your partner) and “Words of Affirmation” (telling them you love them or giving them verbal praise); the other three are “Quality Time”, “Receiving Gifts” and “Physical Touch”. Psychologists and counsellors have since expanded on this, either by adding one or more additional specific languages, or redefining the concept such that languages are unique to each relationship dynamic or individual. The original book has sold more than 11 million copies, though, so the concept of the original five love languages has become deeply entrenched in popular culture discussions of love and affection. Chapman has since written ten other books about similar subjects, though note his work has not been without criticism – he is not professionally trained in psychology or counselling, and holds some deeply conservative and homophobic views, making the widespread applicability of his ideas suspect. He has also been opposed to later expansions of the idea, rejecting the addition of other languages as just “dialects”.
  • Tintin is the fictional young Belgian journalist who is the protagonist of The Adventures of Tintin, a series of French-language comic albums written by Belgian cartoonist Georges Remi (1907-1983), better known by his pen name, Hergé. Tintin first appeared in a newspaper supplement in 1929, but became hugely popular, starring in 24 full-length albums between 1929 and 1986 and selling millions of copies. Tintin is accompanied by his faithful dog Snowy, a small white fox terrier, and often aided by his best friend, merchant sailor Captain Archibald Haddock. While the books are largely great adventurous fun, it should be noted that it makes use of many racist caricatures and stereotypes common in the first half of the twentieth century, though some of the albums hold up better than others. Its cultural influence is huge, though; 1980s new wave/pop group The Thompson Twins is named after Thomson and Thompson, a pair of bumbling moustachioed detectives (who are not related, but look near-identical) from the series, and no lesser a team than Steven Spielberg, Peter Jackson, Steven Moffat, Edgar Wright and Joe Cornish banded together to make a CGI film adaptation in 2011, The Adventures of Tintin: The Secret of the Unicorn.
  • The Aboriginal concept of connection to Country is hugely important; rather than have us tell you about it, we encourage you to learn about it from First Nations sources, for example Common Ground. While its expression in Australia is unique, the concept is common to many traditional cultures around the world.
  • The hugely popular sci-fi franchise Stargate, which began with the 1994 feature film, is just the most famous expression of the “ancient astronauts” idea, popularised by Swiss author Erich von Däniken in his scientifically panned but bestselling 1968 book, Chariots of the Gods? It’s notable that in the work of von Däniken and others, it only ever seems to be non-Abrahamic gods who are said to be aliens. (Star Trek at least had an alien claiming to be the one true God, though that was in the generally hated film Star Trek V: The Final Frontier.) If you want to learn more about the harm done by such racist theories, this article by Sarah Bond for Hyperallergic is a great overview.
  • The “Bury Your Gays” trope has a sadly long history; you can find some further explanation and a long list of examples at TV Tropes.
  • Frank Woods is not mentioned in The Long Earth – he’s a totally new character, making Ben’s annoyance about his role at the end of book many times greater. Ben may have been thinking of “the boy genius” Franklin Tallyman, who signs up with Jack Green’s company as a blacksmith and is instrumental in the founding of Reboot. He also repairs the Mark Twain when Joshua and Sally come through Reboot on their way back to Datum Madison. (Ben will soften on Frank in the next next book.)
  • An “OTP“, short for “One True Pairing”, is a fan or fan group’s favourite couple in a show, book series or other work of fiction. “Shipping” is itself short for “relationshipping”, and is used as a verb for actively wanting two (or more) characters to get together, regardless of what a show or book’s writers will actually have them do. Non-romantic versions are sometimes called “BroTPs” or FrOTPs.
  • “The ‘In’ Crowd” was originally recorded by American singer Dobie Gray in 1964; it featured on his album Dobie Gray Sings for “In” Crowders That Go “Go-Go”, and also on Dick Clark’s popular radio documentary program Rock, Roll and Remember. There have been a few influential covers since, most notably UK English singer-songwriter Bryan Ferry, who released it as a successful single and on his 1974 album Another Time, Another Place. (Ben is also partial to the Mike Flowers Pops version from their 1996 album “A groovy place.”, though the original is yet to be surpassed.) The chorus and verses feature the refrain “I’m in with the ‘in’ crowd”, and so it’s the most likely reference for Lobsang’s line “I’m in with the Oort Cloud”. The Oort Cloud, by the way, is the theoretical cloud of icy “planetismals” (essentially, very small planet-like objects, much smaller than true or dwarf planets) which forming the the boundary of our solar system, beyond the orbit of Pluto. It’s named for Dutch astronomer Jan Oort, who revived this old theory in 1950 as a way of explaining the origin of comets with very long periods. The Oort Cloud is a looooong way from the Sun, with its objects lying between 0.03 to 3.2 light years away. Voyager 1, the Earth craft furthest from Earth, won’t reach it for another 300 years, though it will no longer have power left to send images back to Earth by then.
  • Joshua’s lost limb getting “Star Wars’d into a new hand” references the fact that multiple characters in the Star Wars franchise lose their hand (or other limbs), only to get prosthetics that are so lifelike and functional as to make the loss effectively meaningless in a dramatic sense. The first to do so (in terms of real world chronology at least) was Luke Skywalker, whose right hand is cut off by Darth Vader during their duel in The Empire Strikes Back; he gets a new hand before the credits even roll. (For the nerds: it’s an L-hand 980, produced by Antilles BioGen.) Vader himself lost his right arm from the elbow in a duel with Count Dooku in Attack of the Clones, and gets a cybernetic replacement that’s stronger than his natural arm – again within ten minutes of screen time! Anakin later loses it, along with all his other limbs, in Ben’s most hated part of Star Wars – Anakin’s duel with Obi-Wan in Revenge of the Sith – paving the way for him to become “more machine now than man”. He eventually loses one of his cybernetic hands again in his final duel with Luke in Return of the Jedi, but he dies soon after so no-one bothers to replace it.
  • In Douglas Adams’ The Hitchhikers Guide to the Galaxy, Arthur Dent makes his own Scrabble tiles when trapped on prehistoric Earth. In the story, the Earth is a hugely complicated computer built by a species from another dimension to determine the Ultimate Question of Life, the Universe and Everything, after their previous computer, Deep Thought, calculated that the Answer to the (unknown) Question was “42”. Without knowing the actual Question, the Answer makes no sense, and so Deep Thought designed the Earth to find out. Arthur and his friend Ford discovered this, then ended up travelling back in time and crashing on Earth in the early days of human beings. Arthur has the early humans pull letters at random out of the bag as a way of testing how the planetary computer’s program to calculate the Ultimate Question is going; the results are not encouraging. This happens near the end of the Primary Phase of the original radio series (in Fit the Sixth), in the final episode of the original television series, and at the end of the second novel, The Restaurant at the End of the Universe.
  • As we mentioned in our The Long Earth episode, The Gap is an American clothing store established in 1969. They’ve been involved in several controversies, but we’re particularly displeased with what they’ve been up to since #Pratchat31: in particular forcing Australian social enterprise Clothing the Gap to change their name to Clothing the Gaps, costing them a great deal of money and energy. Clothing the Gaps is majority Aboriginal owned and run by health professionals as a way to support the “closing the gap” movement, which isn’t about shutting down the US brand (tough that’s something we’d like to do now), but rather about addressing the massive gap between health outcomes like life expectancy and the prevalence of many preventable diseases, between Aboriginal Australians and the general Australian population. Their stuff is great and we recommend you check them out at clothingthegaps.com.au.
  • Robur is the “science tyrant” antagonist of Jules Verne’s novels Robur-le-Conquérant (Robur the Conquerer) and Maître du monde (Master of the World), as mentioned in #Pratchat31. His craft, the Terror, is ten metres long and can travel on land, on or under the sea, and through the air at incredible speeds, but it is struck by lightning and destroyed. Robur’s body is never found, though his captive, Inspector John Strock, survives the crash…so you never know.
  • The train-based war game based on Deadlands was Deadlands: The Great Rail Wars, released in 1997. Unfortunately there were no train miniatures – players fielded teams of humans (and maybe other creatures) who fought in standard Wild West terrain, though they did use steampunk gatling pistols and magic.
  • There is indeed such a thing as a train that lays its own track; the real world kind are used to lay new track for the passenger and freight trains that will follow. Here’s an example from China, featured on trainfanatics.com. Ben was thinking of something more fictional, though he hasn’t been able to track it down (no pun intended); listener Graham Kidd suggested the 1974 science fiction novel Inverted World by British author Christopher Priest, which features a city travelling north on train tracks, which cannibalises the tracks already used to build more tracks ahead. It sounds great but isn’t the one Ben’s thinking of!
  • We’ve found some claims that Terry Pratchett and Diana Wynne Jones were also good friends, though we’ve not found any evidence of that; we have found proof that they met, though, in the form of this Institute of Contemporary Arts talk, “Whose Fantasy?”, from 1988, chaired by Neil Gaiman, and featuring both Pratchett and Wynne Jones, along with John Harrison and Geoff Ryman. It sounds like a bootleg recorded from the audience, but it’s quite a good listen!

A Short Announcement re: The Long War

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For the second time – and coincidentally for another of the books in The Long Earth series – we’ve made a change in our schedule! Our next book will still be The Long War, as announced in #Pratchat44, but we’re postponing that until August. Our forty-fifth episode, #Pratchat45, will instead discuss Pratchett’s 1987 short story, “Twenty Pence, With Envelope and Seasonal Greeting”. Listen or read on for more information; and we’ve included a short (silly) out-take from an old episode as a little thank you treat.

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Please get your questions in for the short story using the hashtag #Pratchat45, or for The Long War using the hashtag #Pratchat46. As usual you can send them via social media, or by email to chat@pratchatpodcast.com.

Because Ben can’t help himself, here are a few brief episode notes:

  • The Long War is probably Pratchett’s second or third longest book. It’s 500 or 512 pages, depending on the edition – we don’t have a word count – but using the page count as a rough guide his longest novel is Unseen Academicals, which clocks in at 514 or 533 pages in its paperback editions. This is considerably longer than his earlier works, which are short by comparison to most fantasy novels. (You can find some amazingly detailed stats on the earlier Discworld books up to The Amazing Maurice on The L-Space Web; and yes, Ben is now very keen to try and complete this work for all of Pratchett’s novels. Stay tuned…)
  • Melbourne’s latest lockdown lasted two weeks, from May 28 to June 10, 2021. Many restrictions remain in place at the time of recording, including limits on the number of visitors to private homes.
  • You can get information about and tickets to The Lost Con, which is happening online on Saturday July 3rd, 2021, at the Australian Discworld Convention website.
  • The out-take is from #Pratchat12, “Brooms, Boats and Pumpkinmobiles“, featuring guest Jackie Tang and discussing Witches Abroad.
  • Echidna spines are not actually hair, but they are made of the same protein, keratin. We previously mentioned this in #Pratchat36, but there are two kinds of keratin: alpha-keratin, which is found in all vertebrates, and beta-keratin, found only in reptiles and birds. Echidna’s spines are made of a harder form of alpha-keratin, similar to the keratin in human fingernails – and surprisingly, using conditioner on your nails (and presumably echidna spines) supposedly makes them stronger and healthier, not smoother!
  • We previously discussed Arthur “The Fonz” Fonzerelli, the 50s greaser with a heart of gold from classic 1970s sitcom Happy Days, in #Pratchat10. (He’s the character who originally – and literally – “jumped the shark”.)
  • The social media network Vine, owned by Twitter, allowed users to post six-second looping videos. It operated from 2012 to 2016, when it was shut down for new uploads; the archive of old content remained until 2019 (though you can still see stills of videos if you follow a Vine link). You can find compilations of some of the best Vine videos on YouTube – please tweet us your favourites! (For contrast, TikTok launched in 2017, though it is the international version of the Chinese original, 抖音 (Douyin), which began operation in 2016.)
  • Ben is remembering Marutaro the Pygmy Hedgehog, who was indeed a Vine superstar in around 2014. They were one of two hedgehog finalists in the Animal category for the 8th Shorty Awards in 2015.

Thanks as always to all our listeners, and especially to our subscribers.

#Pratchat31 Notes and Errata

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Theses are the show notes and errata for episode 31, “It’s Just a Step to the West“, featuring guest Joel Martin, discussing the 2012 Long Earth novel The Long Earth.

  • The episode title is a play on “It’s just a jump to the left”, the first instruction from dance anthem The Time Warp from the musical The Rocky Horror Show. It follows a young couple who are on their way to visit their old science lecturer to tell him they’re engaged, but on the way – actually, no, we can’t explain it. It makes no sense. You just have to experience for yourself.
  • “Hard” science fiction is science fiction that attempts to be scientifically accurate, or at least scientifically plausible. Notable authors in this style include Jules Verne, Arthur C. Clarke, Poul Anderson, Larry Niven, Robert Heinlein, Kim Stanley Robinson, Neal Stephenson and Stephen Baxter. (Yes, it’s a bit of a boy’s club; please let us know your favourite hard sci-fi authors of other genders!)
  • Joel previously appeared on episode 14, “City-State Lampoon’s Disc-Wide Vacation“, discussing The Colour of Magic on the 35th anniversary of its publication. We still hope to have him back for our episode covering The Light Fantastic on its 35th anniversary in June 2021.
  • Stephen Baxter is an English science fiction author with degrees in Engineering and Mathematics who has written nearly sixty novels, giving Terry a run for his money! His most famous book is probably the award-winning 1995 novel The Time Ships, an official sequel to H. G. Wells’ The Time Machine. His Xelee series encompasses thirteen books, beginning with Raft, a novel that evolved out of the short story Joel mentions here. (Not to be confused with the Steven King short story “The Raft”, which is…very different.)
  • Indiana Jones and the Kingdom of the Crystal Skull is, unfortunately, the very real fourth film in the Indiana Jones franchise. Released in 2008, and directed by Steven Spielberg, its set in 1957 and stars Harrison Ford as whip-cracking, two-fisted adventure archaeologist Indiana Jones, who alongside old flame Marion (Karen Allen) and her son Mutt (Shia LaBeouf) battles Soviet agent Cate Blanchett for control of an alien crystal skull which can unlock psychic powers. You can probably see why we weren’t into it. A fifth Indiana Jones film is in pre-production and scheduled for release in 2022.
  • 1917 is a 2019 World War I film directed by Sam Mendes, and made to look like it happens in two long, continuous shots. It follows two young British soldiers sent across France to deliver orders calling off a doomed offensive.
  • Mink Car is the eighth studio album by American alternative rock band They Might Be Giants, released on September 11, 2001. Pratchett appears to have been a fan of the band, as references to their work appear in a few of his books, including the spoof band “We’re Definitely Dwarves” in Soul Music.
  • The mulefa are peaceful intelligent creatures from a parallel Earth featured in The Amber Spyglass, the third book in the original His Dark Materials trilogy by Philip Pullman. They have a superficial resemblance to elephants, but have a diamond-shaped skeleton with no spine, and a sophisticated culture, language and tools – including the use of special seed pods as wheels.
  • Jasper Fforde is an English author best known for his novels about Thursday Next, beginning with 2001’s The Eyre Affair. Next is a “literary detective” from a not-entirely-serious parallel world, and her investigations sometimes take her inside great works of fiction. She is from her reality’s version of 1985, and many of Fforde’s books are set in worlds which feel like the recent past.
  • As one of Liz’s faves, we’ve mentioned English author Diana Wynne Jones many times in previous episodes. Her works include the Chrestomanci series, Howl’s Moving Castle and its sequels, and The Tough Guide to Fantasyland. Jones has been cited as an inspiration by many British writers, including Pratchett.
  • The term Datum Earth refers to the concept of a datum reference (or just datum) – an important part of an object nominated as a reference point for measurements. Hence the Datum Earth is the reference point for all travel East and West. The concept of datums – and yes, that’s the correct plural in this sense – sees use in many disciplines, including charting, mapping, engineering and many crafts. Big thanks to listener Nathan J. Phillips for explaining this one over Twitter!
  • The North American Discworld Convention is a bi-annual convention which began in 2009, running opposite the UK convention which operates bi-annually in even years. The convention moves around the US; in 2011 it was held in Madison, Wisconsin, hence that city’s prominence in The Long Earth, while the 2019 convention was held in Los Angeles, with a theme of “Hooray for Holy Wood”. (We were very kindly invited, but unable to attend – maybe in 2021!) You can find out more at the official web site, nadwcon.com.
  • We have mentioned the film Stargate and its television successor, Stargate SG-1, many times. Both follow an archaeologist and military commander who travel through a “stargate”, an ancient alien device that allows near-instantaneous travel to other worlds with stargates across the galaxy. The television series has often made a plot point out of the possibility of knowledge of the stargate – and the US military’s stargate programme – becoming public.
  • Prometheus is Ridley Scott’s 2012 film set in the Alien universe, a prequel in which humans discover an extinct alien civilisation on a distant planet. Oh, and some horrible monsters, of course. It features Michael Fassbender as android David 8 (more on him below) and Noomi Rapace as archaeologist Elizabeth Shaw. It’s not good; maybe archaeologists and aliens just don’t mix?
  • Jules Verne (1828 – 1905) was a French science fiction writer in the 19th century whose books were adventures based on scientific ideas. His most famous books are Voyage au centre de la Terre (Journey to the Centre of the Earth), Vingt Mille Lieues sous les mers (20,000 Leagues Under the Sea) and Le Tour du monde en quatre-vingts jours (Around the World in Eighty Days), all of which involve fantastic journeys either to extraordinary places or via extraordinary means. Maître du monde, or Master of the World, was his penultimate novel, published a year before his death. It’s a sequel to the earlier book Robur-le-Conquérant (Robur the Conquerer), and serves as a warning of totalitarianism. In the novel, science tyrant Robur uses his mastery of technology to create an extraordinary craft that can travel on land, sea and through the air so fast it is invisible, and uses it to terrorise the United States.
  • Stonehenge is the most famous monument consisting of standing stones, first constructed around 5,000 years ago for purposes which remain mysterious. It’s in Wiltshire, the part of England in which Terry and his family lived much of their lives. The Singing Stones are an invention for the book, but there are stones that resonate when struck in much the same way. These “lithophones” occur naturally, like the “ringing rocks” found in Pennsylvania and New South Wales, and can be made into instruments called lithophones. A famous example are the Musical Stones of Skiddaw, constructed in the 18th century and now on display at the Keswick Museum and Art Gallery in northern England.
  • Neal Stephenson is an American speculative fiction author who has written sixteen novels, the most famous probably Snow Crash (1992). Stephenson mixes themes of history, technology, religion and politics with a wry sense of humour – the main character in Snow Crash is named “Hiro Protagonist” – and the comparison to the combined Pratchett/Baxter style is apt. As well as books set in not too distant cyberpunk-ish futures, he has also written historical novels, but most also involve themes of technology and computers.
  • “The High Meggas” was written in 1986, but not actually published until 2012, when it was included in Pratchett’s 2012 collection of short fiction, A Blink of the Screen – the same year as The Long Earth! In the short story, reclusive stepper Larry Linsay is minding his own business on an Earth in the High Meggas, avoiding the local “super baboons” and their leader, which he calls Big Yin. He detects the arrive of two security guards from the “gumment”: Joshua Valienté and Anna Shea. He captures them both, and each claims the other poisoned the water supply at Forward Base, the nearest government facility, killing fifty people. He has to decide who to trust, while still pondering the mysteries of the High Meggas… The term “High Meggers” (note different spelling) appears in chapter two of the novel with the same meaning as in the original short story: those earths more than a million steps away from Earth (not just in the high thousands, as Ben mentions). Both the story and chapter two of the book also use the term “Low Earths” to describe worlds only a few steps away from the original. The terms “Datum Earth”, “Long Earth” and even “step” do not appear in the original story, which uses “move” to describe the act of stepping – a term echoed in The Long Earth when Joshua refers to a “Knight’s Move”.
  • The names Joshua and Jesus are close to each other in both English and the original Hebrew. In Hebrew, ישוע or “Yeshua” was a common alternative form of יְהוֹשֻׁעַ (“Yehoshua”). While they’re distinct in the source, Greek texts translate them both as Iesous (Ἰησοῦς), which became the Latin Iesus, and then in English, Jesus. In Greek Bibles Joshua is thus also named Jesus, though he is referred to as “Jesus, son of Naue” to differentiate him from Jesus, son of God. There are some English Bibles in which Joshua is referred to as Jesus, as well. The confusion doesn’t usually go back the same way, and some ancient texts seem to make it clear that Jesus only ever used the shorter version of the name, though it’s worth pointing out that Jesus was a pretty common name back then.
  • We’ve not been able to find any record of gunmetal covered Bibles being used during the First World War, but there are certainly plenty of stories of Bibles in pockets stopping bullets – most of them probably apocryphal. The stories had an effect, though; metal-covered “heart shield Bibles” were common artefacts carried by American soldiers during World War II.
  • The Biblical Joshua (aka Hoshea, Jehoshua or Jesus; see the note above) was Moses’ assistant, as documented in the Books of Exodus and Numbers in the Torah and Old Testament. He was born in Egypt before the exodus, and was present for many of Moses’ famous deeds. Later he spied on Canaan for Moses and after Moses’ death was chosen by God to lead the Israelites, and blessed with invincibility. He led the conquest of Canaan and lived a long life, dying aged 110. His later life is chronicled in the Book of Joshua.
  • The toaster episode of The Simpsons is Treehouse of Terror V from the show’s sixth season in 1994, one of the annual Halloween anthologies. In the second segment, “Time and Punishment”, Homer accidentally turns a broken toaster into a time machine and travels to the past, altering history multiple times. As well as the no donuts world, he also creates a dystopia ruled by a despotic Ned Flanders.
  • In the fourth Harry Potter novel, Harry Potter and the Goblet of Fire, the Quidditch World Cup stadium is hidden from non-wizards through the use of a “Muggle-Repelling Charm“. Muggles who came too near would suddenly remember an appointment for which they were late and hurry away.
  • Celtic mythology is the source of most modern ideas of “the fae” in Western cultures, and belief in the “fair folk” (who go by many epithets) is still common in Ireland, as briefly discussed in episode 15 (and further in an outtake featured in episode three of our subscribers-only bonus podcast, Ook Club). The Otherworld as a concept is older and broader, and present in many religions and belief systems, but the Celtic version – known as Tír na nÓg, Annwn or Avalon in various traditions – matches up pretty well with the way the Trolls and Elves of the Long Earth use stepping to occasionally visit Datum Earth.
  • In August 2019, an American musician tweeted about the need to ban assault weapons; in response, another Twitter used asked “How do I kill the 30-50 feral hogs that run into my yard within 3-5 mins while my small kids play?” The hypothetical was widely mocked and quickly became a widespread meme, though it didn’t last long. It resurfaced briefly in September that year after a news report of feral hogs in Canada potentially crossing the border into Montana. It’s worth noting that feral hogs – or feral pigs as we call them in Australia – are definitely real and can be quite destructive to wildlife, especially in countries like the US and Australia where they are not a native species. While they are indeed dangerous, attacks are rare.
  • In X-Men comics, Nightcrawler is the alias of the German mutant, circus performer and superhero, Kurt Wagner. His mutation gives him a demonic appearance, with blue skin, red eyes, a prehensile tail, pointed ears and three-fingered hands and two-toed feet. He also has the ability to teleport short distances, disappearing and reappearing in a puff of smoke, with the smell of brimstone. He first appeared in 1975, and has featured in many adaptations of the comics. Nightcrawler is a major character in the 2003 feature film X2, where he is played by Scottish actor Alan Cumming. In the opening scene he attempts to kill the American President, leaping and teleporting to avoid the President’s security. He is often depicted fighting in the same way in various X-Men videogames.
  • Sliders is an American science fiction series that ran for five seasons from 1995 to 2000. It starred Jerry O’Connell as Quinn Mallory, a genius physics student who invents a device that creates temporary wormholes into parallel universes. He accidentally traps himself and three others – his physics professor (John Rhys-Davies), his friend Wade (Sabrina Lloyd) and passing soul singer Rembrandt Brown (Cleavant Derricks) – on the other side of a wormhole. Each episode Quinn’s “timer” randomly resets, counting down the time until a new wormhole opens to another alternate reality. The episode Ben describes about a population controlled alternate Earth is “Luck of the Draw”, the first season finale. While there are no Trolls or Elves, Sliders does have the Kromaggs, an intelligent species of apes from a parallel Earth who can also travel between universes, stripping other versions of Earth for resources. (Ben recommends the first two seasons, but it gets a bit rocky after that, with three of the four main cast leaving )
  • The Gap is an American clothing company founded in 1969. It grew to prominence in the 1990s, and now has thousands of stores in more than forty countries. The company owns several famous clothing brands, including Banana Republic and Old Navy. It has been involved in controversy over conditions in its factories and those of its suppliers in Saipan, Jordan and India.
  • Stephen Baxter’s Xeelee Sequence spans nine novels and more than fifty short stories. It touches on many hard sci-fi ideas drawing on quantum physics, and follows humanity’s expansion into the wider universe and their conflict with the Xeelee, an ancient species of aliens in the “so technologically advanced they are almost gods” mould.
  • The song “Step in Time” was written by the Sherman Brothers for the Walt Disney’s 1964 feature film adaptation of Mary Poppins. It’s sung by Mary’s friend Bert (American actor Dick Van Dyke, doing an infamously dodgy Cockney accent) and his fellow chimney sweeps as they dance on the rooftops of London. It’s a lot like “Knees Up Mother Brown”, with each verse identical except for a different repeated dance instruction, like “Kick your knees up”, “Flap like a birdie” and “Link your elbows”. (Later verses change these up for other phrases – including “Votes for women”!) In the 2004 Broadway musical, the song is introduced with the idea that chimney sweeps are like guardian angels who “step in, just in time” when someone is in trouble.
  • A potato battery is created by sticking a piece of zinc and a piece of copper into a potato and connecting their exposed ends to an electrical circuit. The acidic potato juice reacts with the metals, resulting in a build up of free electrons in the zinc, and a loss of electrons from the copper. This creates an imbalance in electrical charge, causing electrons to travel from the zinc through the electrical circuit to the copper, producing an electrical current of about 0.5 Volts. (Lemons, the more popular vegetable battery choice, generate a higher voltage because they have more acidic juice.)
  • In the 2007 videogame Portal, the player character, Chell, is forced to navigate a series of “test chambers” that can only be escaped through the use of a “portal gun”, which creates pairs of portals that link two locations. The test facility is run by a sinister artificial intelligence named GlaDOS. In the sequel, 2011’s Portal 2, GlaDOS is deposed by another AI and has her “personality core” attached to a potato battery, forcing her to team up with Chell. Neither of them is happy about it.
  • Most laptops do contain metallic iron, since most of them still use magnetic hard drives. This form of storage, while susceptible to damage from physical knocks, is still a lot cheaper than hardier solid-state technology, so many laptops – especially ones with large storage capacities – still use it. Modern magnetic drives use iron and cobalt layered over aluminium, but a solid state drive largely depends on silicon, so it wouldn’t be too hard to make laptops that could travel between Earths.
  • British glam rock star David Bowie appears on the cover of his 1973 album Aladdin Sane in character as Aladdin Sane, with a stylised red and blue lightning bolt painted across his face.
  • Michael Fassbender plays two android characters – David 8 and Walter – in the films Prometheus and Alien: Covenant. Like the androids in the earlier films – particularly Ian Holm’s Ash in Alien, and Lance Henrikson’s Bishop in Aliens and Alien 3 – he is portrayed as an advanced synthetic organism, rather than a metal robot.
  • We discussed Thomas and Will Riker, the transporter twins from Star Trek: The Next Generation, in our previous episode, “Looking Widdershins“. See that episode’s show notes for an explanation.
  • In the X-Men comics and adaptations, mutants like Nightcrawler are humans who possess a specific genetic mutation, known as the X-gene, which causes them to develop superpowers, usually around puberty. Despite the prevalence of superheroes in the Marvel universe, mutants as a group are subject to mistrust, prejudice and bigotry. Their stories have served as allegories for the struggles of queer folks, people of colour and other marginalised communities. Anti-mutant sentiment is often shown to be political or religious in origin, or at least justified that way. There are many examples of charismatic leaders stirring up hatred against mutants for their own ends, including the Reverend William Stryker in the 1982 graphic novel God Loves, Man Kills, and recurring character Senator Robert Kelly, both of whom appear in the film adaptations.
  • For any younger listeners, September 11 refers to the terrorist attacks on September 11, 2001, in which members of the group Al-Quaida highjacked four passenger aircraft and flew two of them into the twin towers of the World Trade Centre in New York, killing nearly 3,000 people.
  • A “pilot episode” is the initial episode produced of a television series, especially in the United States, where pilots are ordered by networks to determine if a series will be produced. As a result they are often double the normal length and spend as much time setting up the characters and premise of the show as exploring any particular plot. Many pilots are re-shot after a series has been given the green light to produce more episodes, or are repurposed as flashback material or a later episode.
  • The 1999 film Galaxy Quest, directed by Dean Parisot, is about the cast of a 1980s sci-fi show, Galaxy Quest, who now spend most of their time attending conventions. They are contacted for help by the alien Thermians, who believe the TV show was a documentary. The all-star cast includes Tim Allen, Sigourney Weaver, Alan Rickman, Sam Rockwell, Enrico Colantoni, Tony Shalhoub and Justin Long. It’s a loving parody of science fiction television and its fans, but with a heavy emphasis on the “loving”. It’s lasting popularity, especially among Star Trek fans, led to the production of Never Surrender: A Galaxy Quest Documentary, released for the film’s twentieth anniversary in 2019.
  • In the world of Harry Potter, a squib is the child of magical parents who is not magical themselves – or at least, not able to do magic, for example the casting of spells. The canonical example is Hogwarts caretaker Argus Filch. We’ve previously talked about squibs, including way back in episode 2, “Murdering a Curry“.
  • Stephen Baxter’s The Massacre of Mankind is not the first sequel to The War of the Worlds, but it is the only official one, authorised by the Wells estate. Baxter – who also wrote an official sequel to The Time Machine, The Time Ships – is a vice president of the H. G. Wells Society, a position he has held since 2006. The book is set in 1920 – 13 years after the events of the original book – and follows Julie Elphinstone’s journey through a second Martian invasion. Like many sequels it is also an alternate history, showing how the original invasion changed Europe and the rest of the world.
  • Baxter collaborated with Arthur C. Clarke on the Time Odyssey trilogy, which is related to Clarke’s Space Odyssey series (Clarke coined the term “orthequel” for them, which is…unhelpful). They deal with a species of godlike aliens who – in an opposite move to Space Odyssey’s monolith building aliens – seek to remove other intelligent species, but wish to preserve a record of their cultures in an alternate universe. Baxter also wrote the 2000 novel The Light of Other Days, based on a synopsis by Clarke, which explores the consequences of technology allowing instantaneous viewing of events from anywhere in space and time.
  • We discussed Good Omens, Pratchett’s collaboration with Neil Gaiman, in episode 15, “It’s the End of the World as We Know It (and We Feel Nice and Accurate)“. Both Pratchett and Gaiman acknowledged that Pratchett was the dominant voice in that book, not least because Gaiman was not an experienced novelist at the time and was busy making the release schedule for his hit comic Sandman. Despite that, elements of Gaiman’s style, and his influence on the plot, are definitely noticeable.
  • The short story version of Raft, which Baxter expanded into the first novel of the Xeelee Sequence, was first published in the magazine Interzone in 1989. Finding out if it’s been collected anywhere has proven difficult, but you can find it online here, thanks to UK sci-fi ebook publishers infinity plus. You can also find a lot of short works by Baxter on his official web site, including many excerpts from and additions to the Long Earth series (most of them from later in the series, so beware of spoilers). We’ll add some more recommendations for works by Baxter here when we get them.
  • We also mentioned the Moa in episode 29, “Great Rimward Land“. It was a large flightless bird native to New Zealand, now extinct. They were not carnivorous but could certainly kill a human being.
  • Logan Paul is an American YouTube star, actor, podcaster and boxer. He became infamous in 2018 after visiting Aokigahara forest near Mount Fuji in Japan and posting footage of a man who had died by suicide there on his YouTube channel. While this was his worst stunt, he has done a lot of other awful stuff, including being cruel to animals, making disparaging remarks about homosexuality, and participating in dangerous trending fads. He was suspended by YouTube for a “pattern of behaviour”, though he claims brain damage sustained playing high school football has impaired his ability to have empathy for others. He’s also a Flat Earther.
  • Depending on who you ask there are between four and five thousand varieties of potato. Let that sink in for a second. If you want to find out more, a great place to start is the European Cultivated Potato Database, maintained by SASA, a division of the Scottish Agriculture and Rural Delivery Directorate. The database very happily has all kinds of data, including “Utilisation Characteristics”; Ben’s favourites are “Crisp suitability” and “French fry suitability” (covering both possible meanings of “chips”).
  • We’ve mentioned the Chrestomanci series by Diana Wynne Jones before, in episode 22, “The Cat in the Prat“. It consists of six novels and one collection of four novellas, all published between 1977 and 2006. In the books, the “Chrestomanci” is an enchanter – a powerful magician – employed by the government of World 12B to police the user of magic. The current Chrestomanci in nearly all the books is Christopher Chant.
  • In Verne’s Hector Servadac (Off on a Comet), first published in 1877, 36 humans are swept away on the surface of comet that briefly collides with Earth near Gibraltar. The title character, a Captain in the French Algerian army, must contend with the English and Spanish solders and other people with whom he is marooned, while experiencing many strange phenomena on a two year orbit away from and then back towards Earth. The original has an anti-Semitic tone concerning one character which drew criticism even at the time, leading to low sales by Verne’s standards. Ben first experienced the story via the Australian animated adaptation made in 1979, which leaves out the offending character. (It’s here on YouTube, though with subtitles and misattributed to a 1976 US cartoon series.)
  • There are twelve “series” of alternate worlds in the Chrestomanci series, each one a collection of worlds which are all similar to each other. Christopher Chant is from world 12A, where magic is common; world 12B is the “real world”, i.e. where we live. The worlds were first explored and numbered by the “Great Mages” who live on the worlds of series one.
  • In the 2001 film The One, directed by James Wong, Jet Li plays Gabriel Yulaw, an agent of the MultiVerse Authority, who goes rogue and starts killing the alternate versions of himself in other universes, as this makes the remaining versions stronger. Li also plays Gabe Law, the las remaining alternate of Gabriel, who is a police officer in Los Angeles on our world. It’s a cool concept but critics pretty universally panned the film.
  • In Diana Wynne Jones’ The Homeward Bounders, demonic entities known only as Them play boardgames with the many alternate universes – not unlike the gods of Dunmanifestin. When twelve-year-old Jamie discovers a group of them playing with his world, they make him a “Homeward Bounder” – forced to “bound” between the worlds, unable to influence Their game, but also virtually unaging and immortal as he searches for his home universe.
  • “Dr Tuesday Lobsang Rampa“, aka Cyril Henry Hoskin, wrote and published The Third Eye in 1956. In it he claimed to have awakened his powers of clairvoyance through “the third eye” ritual, in which fellow Lamas drilled a hole in his forehead and implanted a sliver of wood “treated by fire and herbs” in his brain. Afterwards, one of the Lamas told him that for the rest of your life he would “see people as they are and not as they pretend to be”. When Hoskin was uncovered as a potential fraud by private investigators working for a Tibetologist, he did not deny his origins, but claimed that his body was now inhabited by Lobsang Rama. The story only gets weirder and we recommend you read up on it.
  • Susan Calvin is a brilliant but emotionless “robopsychologist” who features in a dozen of Isaac Asimov’s short stories about robots. Marvin, the “Paranoid Android”, is a genius robot with a “genuine people personality” that means he is always depressed; he appears in Douglas Adams’ The Hitchhiker’s Guide to the Galaxy in all its incarnations. We discussed the horse from The Dark Side of the Sun in episode 18, “Sundog Gazillionaire“.
  • Jeph Jacques’ Questionable Content is a web comic launched in 2003. It’s set in Northampton, Massatuchetts, in either a near future or alternate reality setting, and revolves around the day to day life of indie rock fan Marten Reed and his extended circle of friends, who include several artificial intelligences with robotic bodies. In 2019 it passed 4,000 strips and is still going, with instalments released three times a week. Liz and Ben are fans.
  • Jack&Ian is the compound name for biologist Jack Cohen and mathematician Ian Stewart, co-authors of the four Science of Discworld books, as well as What Would a Martian Look Like? and several other fiction and non-fiction books. Jack passed away in 2019.
  • The Kardashev scale, created by Russian astronomer Nikolai Kardashev in 1964, is a way of classifying intelligent civilisations based on the amount of energy they are able to use. Type I civilisations harness the energy naturally available on their own planet (as humans currently do); Type II civilisations harness all the power available from their home star; and Type III civilisations harness the power output of an entire galaxy. Extensions to the scale have since added Type IV (the power of an entire universe) and Type V (the power of multiple universes).
  • Andre Norton was an American speculative fiction writer, and the first woman to hold many of science fiction’s highest honours. Her novels The Crossroads of Time (1956) and Star Gate (1958) are among the earliest alternate worlds stories to reference the many-worlds interpretation of quantum physics, and blend science ficiton with sword and sorcery.
  • InterWorld is a 2007 standalone novel written by Neil Gaiman and Michael Reaves, in which high school student Joey discovers he is a Walker, one of a number of people who can step between alternate realities, and is recruited by InterWorld, an organisation working to keep the forces of magic and science in balance.
  • Nine Princes in Amber by American fantasy writer Roger Zelazny is the first in the Chronicles of Amber series. In the series, “Amber” is one of two true worlds; all others, including the regular Earth that we know, are merely shadows caused by the tensions between these two worlds. Nobles of those true worlds are able to gain the power to “walk through Shadow”, travelling to any permutation of reality they can imagine.
  • Feels like a while since we referenced 99% Invisible! The episode “Ten Thousand Years” from December 2014 is one of Ben’s favourites, and discusses the difficulty of creating adequate warnings for nuclear waste, which might need to be understood many thousands of years in the future. Stick with it right to the end, it’s amazing.
  • The Long Earth audiobook is narrated by English actor and comedian Michael Fenton Stevens, who also narrated the other books in the series, as well as the non-fiction parts of The Science of Discworld books, The Folklore of Discworld, and some of the stories in the collection A Blink of the Screen.