Stephen Baxter

#Pratchat78 – One Step Beyond

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It’s the final leg of the Long Journey as Joel Martin and Deanne Sheldon-Collins answer our Invitation! Both previous Long Earth guests return to discuss the fifth and final of Terry Pratchett and Stephen Baxter’s collaborations, the 2016 novel The Long Cosmos.

It’s 2070, and a message has been received across the Long Earth: “JOIN US.” Joshua Valienté hears it and gets one of his headaches, but he’s still mourning the death of his ex-wife Helen, so he rejects the call to adventure. He goes off alone into the High Meggers, despite multiple warnings that he’s too old for this shit. Meanwhile Nelson Azikiwe finds and loses a new family, and goes in search of Lobsang for help. And the Next find that the Invitation is more than two words long, and put into action far-reaching plans to bring everyone together to follow its instructions…

The last of Pratchett’s novels to be published, The Long Cosmos brings the series to a close. (If you need a recap, see our “The Longer Footnote” bonus episode.) Like the previous book, The Long Utopia, this one also takes place on a relatively small number of Earths – but it has its gaze fairly firmly fixed on the stars above, and wears its influences (especially Carl Sagan’s Contact) on its sleeve.

Who got their epic first contact novel in our weird parallel worlds travelogue? Is this where you thought the story would go? What would your friends be able to predict about you if they kept a detailed spreadsheet? After five books, is this a satisfying conclusion? Join the conversation by using the hashtag #Pratchat78 on social media.

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Guest Joel Martin (he/him) is a writer, editor and podcaster now based in the UK. He previously hosted the writing podcast The Morning Bell, and produced The Dementia Podcast for Hammond Care. Joel’s previously been on the show to discuss The Long Earth, The Long Mars, The Colour of Magic and The Light Fantastic, making him our most frequent guest. He recommended the 1989 novel Hyperion by Dan Simmons, along with its sequel The Fall of Hyperion. (There are also two more novels in the Hyperion Cantos series.)

Guest Deanne Sheldon-Collins (she/her) is an editor and writer in Australia’s speculative fiction scene, working for Aurealis magazine, Writer’s Victoria, the National Young Writer’s Festival, and as co-director of the Speculate festival. Deanne previously joined us for The Long War and The Long Utopia. She once again recommended Pratchat listener favourite, Martha Wells’ series The Murderbot Diaries, which consists of seven novels and novellas. The first is 2017’s All Systems Red.

As usual, you can find notes and errata for this episode on our website.

We’re off to Adelaide to be guests at the Australian Discworld Convention, where on Friday 12 July we’ll be recording a live episode with authors Tansy Rayner Roberts and Karen J Carlisle! We’ll be discussing Pratchett’s Discworld short fiction “Death and What Comes Next”, and probably more broadly how Pratchett writes about Death (and death). The story is available online at the L-Space Web. We’ll mostly be taking questions from the live audience, but you can also share yours via social media (if you’re quick!) using the hashtag #Pratchat79.

Want to help us get to the end of our six(ish) year mission and read every Pratchett book – and more? You can support us with a tip, or a subscription for as little as $2 a month, and that’s cuttin’ our own throats! See our Support Us page for details.

#Pratchat78 Notes and Errata

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These are the episode notes and errata for Pratchat episode 78, “One Step Beyond”, discussing Terry Pratchett’s final collaboration with Stephen Baxter, 2016’s The Long Cosmos, with returning guests Joel Martin and Deanne Sheldon-Collins.

Notes and Errata

  • The episode title is from the song “One Step Beyond”, originally by Jamaican artist Prince Buster, who released it as a B-side on his single “Al Capone” in 1964. Coincidentally the version of the original we could find on YouTube features footage of exactly the kind of exoticised “Egyptian” dancing we imagined Fred and Nobby doing in our episode about Jingo. (We don’t necessarily recommend listening to all Prince Buster’s back catalogue; the music is great, but some of the lyrics are misogynist at best.) In the UK and Australia, ”One Step Beyond” is much better known via the cover by Madness, a ska band from Camden who also took their name and other early covers from Prince Buster. The song was the title track on Madness’ first studio album, One Step Beyond (1979), and their second hit single.
  • We’ve previously discussed the The Long Earth:
  • The Long Earth timeline only gets a bit longer in this book; here’s an updated (and simplified) list of major events to help you keep it all straight:
    • 1848-1895 – the adventures of Joshua’s ancestor, natural stepper Luis Valienté, culminating in “the Fund”, an organisation that bribes steppers to interbreed. (The Long Utopia)
    • 2001 – Freddie Burdon is given Maria Valienté’s details by The Fund. (The Long Utopia)
    • 2002 – Maria, now 15, gives birth to Joshua, leaving him briefly alone on a stepwise Earth. (The Long Earth)
    • 2015 – “Step Day” – humanity at large learns of the Long Earth. (The Long Earth)
    • 2026 – The Green family and others establish Reboot on Earth West 101,754. (The Long Earth)
    • 2029 – Monica Jansson investigates Bettany Diamond, the “Damaged Woman” who sees into stepwise Earths. (The Long Cosmos)
    • 2030 – Lobsang and Joshua go on “The Journey” and meet Sally Linsay; they also find the Cueball Earth. Lobsang’s “ambulant unit” is left behind with First Person Singular on the far side of The Gap. Joshua (M28) meets Helen (F17). Rod Green delivers the suitcase nuke to Datum Madison. (The Long Earth)
    • 2031 – Joshua and Helen get married. (before The Long War)
    • 2036 – Cassie Poulson is the first human to encounter the “silver beetles” in New Springfield on Earth West 1,217,756. (The Long Utopia)
    • 2038 – After three years of distributing copies of the Complete Works to Long Earth communities, Johnny Shakespeare’s matter printer makes a mutant copy of itself on Earth West 31,415 which multiplies until the world has to be evacuated. (The Long Utopia)
    • 2040 – Maggie’s mission captaining The Benjamin Franklin. Roberta’s trip with the Chinese East Twenty Million mission. War is avoided between the United States and Valhalla. Joshua loses his hand after being captured by the Beagles. The Yellowstone supervolcano erupts. Monica Jansson dies. (The Long War) Stan Berg is born. (The Long Utopia)
    • 2045 – Maggie’s mission as captain of the Neil Armstrong II, and Sally’s trip to Mars with her father Willis and Frank Wood. Frank dies on Mars. Joshua and Sally help the Next escape from military prison, and Joshua successfully talks Maggie out of blowing them up; they leave to establish the Grange, and Lobsang destroys Happy Landings with a meteorite. (The Long Mars) Lobsang “dies” in late fall; his funeral is in December. (The Long Utopia)
    • 2052 – Nikos is the first confirmed human to step “North” when he finds the Gallery and the silver beetles on New Springfield. (The Long Utopia)
    • 2054 – “George”, Agnes and their adopted son Ben settle in New Springfield. (The Long Utopia)
    • 2056 – Agnes realises something is wrong with the world and discovers the beetles. Stan is approached by Roberta Golding to join the Next in the Grange and declines. (The Long Utopia)
    • 2058 – Lobsang and Joshua investigate Earth West 1,217,756 and uncover the beetles’ plans. Six months later in Fall, Joshua finds Sally and they retrieve the old Lobsang from Earth West 174,827,918, the home of the Traversers. (The Long Utopia)
    • 2059 – Early in the year, Stan, “George” and Sally “cauterise” Earth West 1,217,756 just before it is destroyed by the beetles.
    • 2067 – Helen Green dies and is buried in Datum Madison. (The Long Cosmos)
    • 2070 – The Invitation is heard by humans, the Next, the trolls and many others. Joshua goes on his ill-fated sabbatical, is rescued by Sancho, and the pair rescue Rod from the Yggdrasil world. Meanwhile Nelson meets his son and grandson, who is lost when Second Person Singular steps away. The Next start the project to build the Thinker. (The Long Cosmos)
    • 2071 – The Thinker nears completion and Maggie, Joshua, the new Lobsang, Sancho and friends take three big steps North. (The Long Cosmos)
  • Stella Welch is not a new character; she appears briefly in The Long Utopia, held up as one of the brightest “pre-Emergence” Next in the Grange. She is also one of the Next who answers Lobsang’s call for help about New Springfield, and reveals the plan to recruit Stan to seal off that Earth.
  • Ben refers to “Martin” from the Humble; this is due to a typo in his notes. The character is actually Marvin Lovelace, who (as Liz rightly remembered in a bit cut for time) is one of the Next who appeared in The Long Utopia. In that book he’s a gambler, an undercover agent for the Next who found Stan Berg, and later answers Lobsang’s call for help alongside Stella. He seems briefly conflicted about Stan’s fate.
  • More notes coming soon.

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

#Pratchat69 Notes and Errata

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These are the episode notes and errata for Pratchat episode 69, “Long Fall Sally”, discussing Terry Pratchett’s penultimate collaboration with Stephen Baxter, 2015’s The Long Utopia, with returning guest Deanne Sheldon-Collins.

Notes and Errata

  • The episode title puns on the song “Long Tall Sally”, written and originally recorded by Little Richard (with Robert “Bumps” Blackwell and Enotris Johnson) in 1956. Fittingly for The Long Earth, “Long Tall Sally” was famously covered by both The Kinks and The Beatles in 1964. Why call it that? Well…it’s a bit of a spoiler, but it’s obviously a reference to Long Earth supporting protagonist Sally Linsay, and you’ll understand if you’ve read the book (or when you get to the end of the episode).
  • We’ve previously discussed the The Long Earth:
  • The Long Utopia adds a lot of new events to the Long Earth timeline; here’s a short(ish) reference to put them in context with some years from the previous books.
    • 1848 – Luis Valienté is recruited by Oswald Hackett into the Knights of Discorporea.
    • 1852 – Luis and the other Knights, including Fraser Burdon, assist the Underground Railroad in America, then get rich by plundering other Earths’ gold veins.
    • 1871 – the Knights go on their final mission in Berlin before Mr Radcliffe tries to murder them. They go into hiding.
    • 1895 – Hackett meets with Luis and Burdon and they form “the Fund” to set up marriages between stepping families and ensure more steppers are born.
    • 1916 (or 1917) – Percy Blakeney accidentally steps to a nearby Earth in the prelude to The Long Earth.
    • 2001 – Freddie Burdon is contacted by the Fund and given Maria Valienté’s details.
    • 2002 – Maria, now 15, gives birth to Joshua in stepwise Madison.
    • 2015 – “Step Day”, when humanity at large learns of the Long Earth. Joshua is thirteen.
    • 2026 – 117 pioneers, including the Green family, arrive on Earth West 101,754 and found the town of Reboot.
    • 2028 – Helen’s mother, Tilda Green, dies sometime between this year and 2030.
    • 2030 – “The Journey”, Lobsang and Joshua’s trip from The Long Earth. Rod Green (Helen’s brother) blows up Datum Madison this year, around the same time as Joshua (aged 28) meets Helen Green (aged 17).
    • 2031 – Joshua and Helen get married.
    • 2036 – Cassie Poulson is the first human to encounter the “silver beetles” in New Springfield on Earth West 1,217,756.
    • 2040 – Maggie’s mission captaining The Benjamin Franklin, Roberta’s trip with the Chinese East Twenty Million mission, and most of the rest of The Long War. The Yellowstone supervolcano erupts. Stan Berg is born.
    • 2045 – Maggie’s mission as captain of the Neil Armstrong II, and Sally’s trip to Mars with Willis and Frank. Lobsang dies in late fall this year, and his funeral is in December.
    • 2052 – Joshua turns 50 and does his 100,000 steps walk. Nikos finds the Gallery and meets the silver beetles.
    • 2054 – “George”, Agnes and Ben settle in New Springfield.
    • 2056 – Agnes realises something is wrong with the world and discovers the beetles. Stan is approached by Roberta Golding to join the Next in the Grange and declines.
    • 2058 – Lobsang and Joshua investigate Earth West 1,217,756 and uncover the beetles’ plans. Six months later in Fall, Joshua finds Sally and they retrieve the old Lobsang from Earth West 174,827,918, the home of the Traversers.
    • 2059 – Early in the year, Stan, “George” and Sally “cauterise” Earth West 1,217,756 just before it is destroyed by the beetles.
  • The new English translation of Journey to the West, the Chinese folk novel by Wu Chen’en, is Julia Lovell’s from 2021, titled Monkey King. The titular Monkey is a trouble-making immortal recruited to aid a Buddhist monk in fetching scriptures from a monastery in India. This is meant to redeem Monkey for his previous misdeeds, including upsetting the order of Heaven, but he refuses to behave. The monk, Tripitaka, tricks Monkey into putting on a cap that conceals a metal band, which he is able to tighten around Monkey’s head with a secret spell (referred to as the “headache sutra” in the famous Japanese television version of the story). This doesn’t injure Monkey – he is made of stone, it’s a whole thing – but it does cause him intense headaches which Tripitaka uses to rein in his violent impulses.
  • Joshua was 13 on Step Day, not 14 as Ben guesses. He was born in 2002, not 2001.
  • While we’re working out how to pronounce Nikos, Liz mentions “Nikolaj”, Charles Boyle’s adopted son in the police sitcom Brooklyn-99. The precise pronunciation of Nikolaj’s name is a repeated gag and character moment between Boyle and his partner, best friend and idol, Jake Peralta.
  • As we’ll mention next episode, the Valhalla Belt references Strata as the main characters live in an alternate universe where Erik Leifsson made it to the Americas, united with its indigenous peoples and formed a nation called Valhalla, which dominated the world through superior technology.
  • Joshua is eleven years older than Helen, and first met her when she was 17. They got married in 2031, when he was 29 and she was 18. Freddie was 17 when he had sex with Maria, who was 14; she was actually 15 by the time she gives birth in May 2002, though this doesn’t change our opinions much.
  • The “10,000 steps” Ben mentions are actually the “Seven Thousand Steps”, a paved path that winds around the mountain known as The Throat of the World in the videogame The Elder Scrolls V: Skyrim. Climbing the steps is an early part of the main quest; they lead to the monastery of High Hrothgar, where the Greybeards await the arrival of the player character, who is the Dragonborn – a prophesied hero with the power of the Voice, able to speak the magical language of dragons.
  • We put some of the dates in the timeline above, but Ben is correct about the history of the Green family, especially about her mother, Tilda, being the driving force behind their migration. They first tried settling in Madison West 2, but it wasn’t far enough away; they then invested heavily in the development of Madison West 5, but didn’t make enough money to leave their Datum jobs behind. Tilda wanted her own dream, not someone else’s, and convinced the family to head out into the further Long Earth, abandoning Rod and all their other ties to the Datum to join the group who founded Reboot in 2026. She died of cancer between 2028 and 2030, and no-one told Rod; he seemed to think she was still alive when he was captured by Monica, minutes before the bomb went off.
  • Liz compares Willis Linsay to Tom Wambsgans from Succession, a character in the popular HBO series about a wealthy family, headed by Logan Roy (Brian Cox), who owns the global media empire Waystar. As the title suggests, a large part of the drama revolves around who will succeed the ailing Logan as head of the company. Tom (Matthew Macfayden) is a Waystar executive who marries Logan’s youngest child, Shiv (Sarah Snook); he is thus close to, but not truly part of, the family’s inner circle. The series ran for four seasons between 2018 and 2023.
  • Ben makes a joke about “love languages”, which we’ve mentioned before; in brief they’re a highly reductive, heteronormative and traditional theory about the ways in which people like to show and be shown affection. In the original version, invented by an American pastor, there are five, but really the useful thing to take from the concept is that different folks like to show and receive love in different ways.
  • The short story “The High Meggas”, Pratchett’s original exploration of the ideas behind The Long Earth, was written in the 1980s; he gives the year 1986, though that conflicts with some accounts of what else he was working on at the time. Ben compares Sally Linsay to Larry Linsay, the protagonist of that story, who is more or less a combination of Sally and her father Willis: one of the inventors of the “moving belt” (the story’s equivalent of the Stepper Box) who ends up living far from other humans in the High Meggers (which are spelt with an “a” in the story). We discussed the short story in #Pratchat57West5, “Daniel Superbaboon”.
  • As we’ve mentioned in our previous Long Earth episodes, complete drafts of the final three novels were finished in 2013, and were full collaborations up to that point. It is true that Baxter did the final polishing and tweaking after that, with only minimal involvement from Pratchett, who had moved on to Raising Steam and The Shepherd’s Crown. Relevant to this episode’s discussion, they did plan the series as a five-book arc right at the start, probably in 2010 or 2011. Thanks again to Marc Burrows, author of The Magic of Terry Pratchett, from which most of this information is drawn. (There’s surprisingly little about The Long Earth in A Life With Footnotes.)
  • Liz’s reference to Nelson Azikiwe’s “sex barge” is his trip with Lobsang to meet Second Person Singular, a Traverser off the coast of New Zealand somewhere around Earth West 700. The society of islanders there has some things in common with the community of the Next in the Grange, included them being quite relaxed about casual sex. His encounter with Cassie for “a little wiggle” is recounted (subtly) in Chapter 60 of The Long War.
  • The Knights of Discorporea use their own terms for stepping, since no global consensus has been reached. Luis Valienté doesn’t have a name for stepping, but uses “dexter” and “sinister” for the directions, Latin words for right and left respectively (a clue to Luis’ more educated early life). Hackett calls stepping “Waltzing”, and uses “widdershins” and “deiseal” for the directions. Pratchett fans will be well familiar with widdershins, which as discussed in the episode notes for #Pratchat30 is an old English word (not an Old English word) which means anti-clockwise, or to move around something by keeping it on your left. Deiseal comes from Irish and means movement “to the right”, or clockwise, making it a good if oddly chosen opposite to widdershins. (A variant word, deasil, just means clockwise.) We presume widdershins and sinister map to “West”, and deiseal and dexter to “East”, since that’s how those compass directions appear on a European map in the usual orientation.
  • X-Men: First Class is the 2011 prequel film showing the origins of the X-Men, a group of mutant superheroes recruited as teenagers by powerful mutant telepath Charles Xavier in his quest to appease the humans who hate and fear them. (That’s possibly a bit harsh, but we’ve been thinking about the superhero as upholder of the status quo recently.) The film was originally intended as a reboot of the X-Men film franchise, but the next film, X-Men: Days of Future Past linked it to the existing X-Men films and established it as a prequel.
  • The Chartists were a working class movement for political reform in the UK, founded in 1838. They demanded a number of changes to improve British democracy, including an expansion of suffrage (though not to women), secret ballots, and less restrictive requirements for who could stand for the House of Commons. The reforms were supported by millions of working class folks, who presented petitions to parliament, but they didn’t see any of their desired changes adopted until after the movement died out in 1857. The “uprising” of April 1848 was part of a renewed interest in Chartism following the French Revolution, and was really a peaceful meeting when a new petition was intended to be brought to parliament by a procession of Chartists. But the government, who strongly opposed the reforms, enacted old and new laws to make the procession illegal, and had huge numbers of police in attendance (including 100,000 special constables!). In the end the meeting ended without the planned procession, though it is true that many were moved to violently oppose the oppression of the government, and presumably those would have been the “agents” removed by the Knights. They are still working for the government agains the common folk, though.
  • When Liz says that “in Doctor Who, Queen Victoria is a werewolf”, she is referring to the episode “Tooth and Claw” from season two of the revived series, when the Tenth Doctor and Rose encounter a recently bereaved Queen Victoria on a trip across the Scottish highlands where she is attacked by an alien werewolf. It is suggested that she may have been bitten by the wolf, and as Rose and the Doctor depart they wonder if this means the Royal Family are indeed all werewolves.
  • Prince Albert of Saxe-Coburg and Gotha, German Prince Consort to Queen Victoria, was a noted small-L liberal with great influence over the Queen. He had an interest in many progressive ideas and social reforms, including support of emancipation (as seen in The Long Utopia), technology, education, science and the welfare of the working class, including raising the working age. While this makes him sound pretty great, it’s important to remember this was all from a fairly paternalistic “we must care for those less fortunate than us” perspective, and he had no desire to lessen his own power or position, but his heart does seem to have been in the right place. His European ambitions seem to stem at least in part from a fear for his royal relatives, especially in the mid 19th century in the wake of the many revolutions in continental Europe. He’s perhaps best remembered for championing the Royal Exhibition of 1851, for which the Crystal Palace was built, and which probably wouldn’t have happened without his campaigning.
  • Queen Charlotte is the monarch in the alternate reality “Regency”-era of the Bridgerton television series, based on the series of romance novels by Julia Quinn. The story of her marriage to King George III is told in the spin-off mini-series Queen Charlotte: A Bridgerton Story, released in May 2023. Ben edits a Bridgerton podcast, What Would Danbury Do?, who covered Queen Charlotte in episode 40, “Sorrows, Prayers and Enduring Love”, with guest Maxine Beneba Clarke.
  • There’s no directly Biblical evidence for Mary’s age at the time of Jesus’s birth, but based on marriage customs many historians have said she was likely to be a teenager. Sources we’ve found have suggested she was maybe 14 when Gabriel appeared to her to give her the news, but 15 or even 16 when Jesus was actually born. But there’s no official answer, and she is most often depicted as an adult woman, as she would have been in any case at the time of Jesus’ crucifiction.
  • Liz mentions Joshua’s Tree, a reference to U2’s 1987 album The Joshua Tree, which itself is named after an actual species of tree native to the Mojave Desert in America. It was named by Mormon settlers, who thought it looked like Joshua raising his hands in prayer. It’s first three tracks are three of U2’s biggest hits: “Where the Streets Have No Name”, “I Still Haven’t Found What I’m Looking For” and “With or Without You”.
  • Bill Chambers’ story about the Cueball is, in fact, word for word the same in The Long War chapter 58, and The Long Utopia chapter 1, save that in this book there are a couple of asides to remind us about the history of the Long Earth. The Cueball was first mentioned, very briefly, in chapter 28 of The Long Earth.
  • The Southern Vampire series – not to be confused with the Vampire Chronicles, which is a whole other thing – are a series of books written by American author Charlaine Harris. Also known as the Sookie Stackhouse Mysteries, they follow protagonist Sookie, a telepathic waitress living in the town of Bon Temps, Louisiana, in a world where vampires have made themselves public knowledge following the development of a blood substitute called “Tru Blood”. (Oh yes – it’s the series that spawned the TV show True Blood, though it’s a loose adaptation.)
  • The Book of Matthew pretty unambigiously states that Judas Iscariot, one of Jesus’s twelve close disciples, did betray Jesus, identifying him to soldiers with a kiss in exchange for a bribe of thirty pieces of silver. Other Biblical writings say Judas was influenced by the Devil to do this, rather than the money being his motivation, and some say Jesus foresaw his betrayal and allowed it since it was part of God’s plan. This has led to something of a contradiction; was he following God’s plan, controlled by Satan, or exercising free will? Bertrand Russell and other philosophers have written about this.
  • Thomas Moore’s Utopia was first published in 1516, originally in Latin. The title is derived from Greek and literally translates to “nowhere” or “no place”.
  • The band that would become The Beatles first formed in 1956 as The Quarrymen, named after their school, Quarry Bank High School, and specifically the start of the school song, “Quarry men old before our birth”. Throughout their early career that went through several names, including in 1960 the Beatals, The Silver Beetles, and for the first time, The Beatles. They were also known for a brief time in 1961 as The Savage Young Beatles, hence Ben’s mash-up of “The Savage Silver Beatles”.
  • Ben mentions Star Trek being set “150 years in the future”, which would place it in the mid-23rd century. That’s about right for the original series of Star Trek, in which James Kirk becomes captain of the USS Enterprise from around the year 2265. However Ben is more thinking of Star Trek: The Next Generation, which takes place 100 years later in the 24th century: Jean-Luc Picard takes command of the newly launched USS Enterprise D in 2364.
  • The Cavern Club was a jazz club in Liverpool which opened in 1957, inspired by jazz clubs in Paris. As rock and roll began to take off in London, it became one of the central venues, and the Beatles played many of their early important gigs there as early as 1958, when they were still called The Quarrymen. The club is still open, though it closed for a time in the 1970s and 80s during the construction of an underground train route. There may well have been clubs called The Gallery or The Observatory, but they don’t seem to have played a big part in rock and roll history if so.
  • We mention a few other von Neumann replicators in fiction include:
    • The alien Replicators in Stargate: SG-1, who initially appear as insect-like robots made of multiple identical pieces. They first appear in the season 3 episode “Nemesis”, where they are the great enemy being fought in a war by the advanced alien Asgardians. They return many times in multiple forms in both SG1 and its spin-off Stargate: Atlantis. As Liz mentions, their origins are later explored, most notably in the fifth season episode of Stargate: SG-1, “Menace”.
    • The Slylandro Probes appear in the 1992 videogame Star Control II: The Ur-Quan Masters, recently re-released as Free Stars: The Ur-Quan Masters. The probes seem to be working for someone, though exactly who – and why they are so hostile – is one of many mysteries the player can choose to solve in the game.
    • Another example we didn’t mention comes from the weird 1990s sci-fi series Lexx, in which drones resembling flying robotic arms also act like von Neumann replicators.
  • Freeman Dyson (1923-2020; no relation to the dude who invents vacuum cleaners) was a British-American physicist who contributed a lot of enduring ideas to science and science fiction. (One of them, thankfully, was not his skepticism of climate change.) The two here are:
    • The Dyson Sphere was a thought experiment about how a super-advanced species might efficiently capture all the energy it could need from its own sun. The basic idea – a huge spherical construction around a star – pre-dates Dyson, first appearing in the 1937 novel Star Maker by Olaf Stapleton, and also J. D. Bernal’s 1929 nonfiction book The World, the Flesh, and the Devil: An Enquiry Into the Future of the Three Enemies of the Rational Soul. Both of these were inspirations for Dyson, who wrote about the idea of a sphere in his paper ‘Search for Artificial Stellar Sources of Infrared Radiation’ for Science in 1959. He didn’t call it a Dyson sphere himself, and indeed didn’t imagine an actual sphere, but instead a spherical group of independent solar collectors. The idea took many sci-fi writers imaginations, with variations appearing in novels like Ringworld throughout the 1970s and beyond. Dyson thought the popular sci-fi depiction – of a literal solid sphere, as in the Star Trek: The Next Generation episode ‘Relics’ – impossible.
    • The Dyson planetary spin motor seems to come from Dyson’s 1966 essay ‘The Search for Extraterrestrial Technology’, published in Perspectives in Modern Physics. The beetles use exactly his method, including how to accelerate the planet’s rotation.
  • In Star Trek: The Next Generation, the Borg Collective are faction of cybernetic organisms first encountered in the second season episode ‘Q Who’. The possess (more or less) a group consciousness and superior technology, and seek to “assimilate” all other forms of life into the Collective, mostly by infecting other humanoids with nanites which transform them into more Borg. Like the Silver Beetles, they generally ignore beings they do not consider a threat, prioritising their current tasks. The Cybermen in Doctor Who are a similar concept, though they are not often written as well.
  • Taskmaster is a British comedy gameshow in which guest comedians compete to complete ridiculous “tasks” set by the hosts, Greg Davies, the taskmaster who judges the winner, and show creator Alex Horne, who acts as a meeker referee to make sure contestants follow the rules of each task. It debuted in 2015 on UK digital channel Dave, moving to Channel 4 in 2020, and has run so far (as of mid-2024) for 17 series and more than 150 episodes. Local versions have been created in many countries, including one for Australia and New Zealand on Channel 10 in 2023, hosted by taskmaster Tom Gleeson and referee Tom Cashman.
  • The trope of someone being eaten alive by tiny creatures – often until there’s nothing left, except maybe bones – appears in lots of places:
    • The X-Files episode Liz remembers with the glowing green bugs is “Darkness Falls” from the show’s first season in 1994.
    • The tiny dinosaurs in Jurassic Park are “compys”, short for Procompsognathus; they appear in the first novel, and then become one of several unused elements from that novel used in the sequels, in this case Jurassic Park: The Lost World.
    • In the 1999 film The Mummy (a guilty favourite of this podcast), one of the terrors in the Mummy’s tomb is a hoard of scarabs that can devour you in seconds.
  • Defying Doomsday is a 2016 anthology from Australian publisher Twelfth Planet Press. It’s a collection of post-apocalyptic fiction featuring disabled and chronically ill protagonists, and won a Ditmar Award for Best Anthology; it includes the story “Did We Break the End of the World?” by friend of the show Tansy Rayner-Roberts, which also won a Ditmar for best novelette or novella. It was followed in 2020 by Rebuilding Tomorrow, a similar anthology with a more hopeful theme, which won an Aurealis Award for Best Anthology in 2021. (It’s not clear if these are still in print.)
  • Deanne recommended the The Murderbot Diaries by Martha Wells, a series beginning with All Systems Red.

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

#Pratchat31 – It’s Just a Step to the West

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In episode 31, Liz, Ben and returning guest Joel Martin step sideways into the infinite earths of Terry Pratchett’s 2012 collaboration with Stephen Baxter, The Long Earth.

In 2015, plans for a strange but simple box-shaped device called a “Stepper”, powered by a potato, are posted online. Kids all over the world build them and discover that the boxes let them step “East” or “West” into other Earths. There are thousands of such worlds – perhaps millions – all subtly different. But they do have one thing in common: there are no humans on any of them. Fifteen years after “Step Day”, human society is irrevocably altered, and experienced far-stepper Joshua Valienté is offered a new job: to step further from Earth than even he has ever been, and explore the mysteries of the Long Earth in the company of a Tibetan motorcycle repairman reincarnated as a supercomputer…

Based on ideas from Pratchett’s 1986 short story “The High Meggas”, written before the popularity of The Colour of Magic led him down a particular leg of the trousers of time, The Long Earth is the first in a series of five novels set in a near future world forever changed by the existence of limitless worlds next door. An epic journey across millions of worlds, Pratchett chose to work with his friend Stephen Baxter, a prolific science fiction author whose work encompasses hard future sci-fi, speculative evolution, alternate history and sequels to classic novels by the likes of H. G. Wells and Arthur C. Clarke. That all seems quite a distance from comic fantasy – but the pairing just works. So – it’s five years since Step Day. Would you visit another Earth? Could you pick which bits were Pratchett, and which Baxter? And what kind of potato is in your stepper box? Use the hashtag #Pratchat31 on social media to join the conversation!

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Guest Joel Martin is a writer, editor and podcaster who previously appeared on Pratchat in episode 14, discussing the book that derailed the Long Earth back in 1986, The Colour of Magic. Joel is also the director of the Speculate speculative fiction festival (specfic.com.au). His latest work is the short story “Hunting Time” in Strange Stories Vol. 1, scheduled to be published this month by 42books. Joel’s writing podcast, The Morning Bell, is currently on hiatus, but you can find the full back catalogue at themorningbell.com.au. Find out more about him at thepenofjoel.com.

Next month we’re stepping back onto the Disc to meet adventurous nine-year-old Tiffany Aching, in 2003’s The Wee Free Men! Get your questions in via the hashtag #Pratchat32 by around May 23rd.

You’ll find the full notes and errata for this episode on our web site.

Want to help us get to the end of our six(ish) year mission and read every Pratchett book – and more? You can support us with a tip, or a subscription for as little as $2 a month, and that’s cuttin’ our own throats! See our Support Us page for details.

#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.