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How Stephen Wolfram Devised Interstellar Travel (And Code Samples) For 'Arrival' (backchannel.com)

The new movie "Arrival" depicts first contact with aliens, and its producers faced the question of how interstellar spacecraft would actually work. They turned to futurist Stephen Wolfram, who came up with an answer overnight, and also tasked his son with writing much of the computer code seen on displays in the movie. Slashdot reader mirandakatz brings us Wolfram's story: Christopher was well aware that code shown in movies often doesn't make sense (a favorite, regardless of context, seems to be the source code for nmap.c in Linux). But he wanted to create code that would make sense, and would actually do the analyses that would be going on in the movie... For instance, there's a nice shot of rearranging alien "handwriting," in which one sees a Wolfram Language notebook with rather elegant Wolfram Language code in it. And, yes, those lines of code actually do the transformation that's in the notebook. It's real stuff, with real computations being done...

For the movie, I wanted to have a particular theory for interstellar travel. And who knows, maybe one day in the distant future it'll turn out to be correct. But as of now, we certainly don't know. In fact, for all we know, there's just some simple "hack" in existing physics that'll immediately make interstellar travel possible.

Wolfram's theory posited that space is just one of the attributes emerging from a low-level network of nodes, where long-range connections occasionally break out of three-dimensional space altogether. His 6,900-word essay (originally published on his blog) also suggests film-making has "some structural similarities" with software development -- and grapples with the question of how we'd actually communicate with aliens once they've arrived.

102 comments

  1. Why is this news? by Jack9 · · Score: 2

    None of this was referenced in the movie. It was a lot of backstory to develop the boring nonsensical drama. The aliens could have been fairies or it's all a dream and the movie is the same.

    --

    Often wrong but never in doubt.
    I am Jack9.
    Everyone knows me.
    1. Re: Why is this news? by Anonymous Coward · · Score: 0

      Because it's something we didn't know? That makes it "news"... As far as the movie goes, I hope we get more like it. Speculative sci-fi seems to have been forgotten much of the time for the wizbang of adventure sci fantasy...

    2. Re:Why is this news? by samkass · · Score: 3, Insightful

      Now that we've gotten the "why is this on Slashdot?" post out of the way, can someone please complain about Slashdot editors and then somehow find a way to work in a criticism of SJW's and Microsoft so we can get on with the rest of the comments?

      --
      E pluribus unum
    3. Re:Why is this news? by Anonymous Coward · · Score: 0

      Not just news on slashdot, almost like it's a viral marketing article for the movie...

    4. Re: Why is this news? by Anonymous Coward · · Score: 0, Troll

      Because globalist propaganda is all the rage these days.

      The easiest thing in the world is (apparently) to use music and film to convince the unthinking, elitist-left (yes, the left is now the elite in case you missed that) that bigger and more centralized government is somehow "good" for them.

      Go ahead and mod me Troll. It's because you're incapable of having a conversation. And because truth hurts. And because propaganda feelz so good: https://www.youtube.com/watch?...

    5. Re:Why is this news? by Anonymous Coward · · Score: 0

      It's a movie, durr. You either enjoy them or you do not. Are you always this miserable?

    6. Re:Why is this news? by hughbar · · Score: 1

      OK, I hate SJWs who use Windows 10. They are the worst, not only do they kill kittens but they eat them too. Is that OK?

      --
      On y va, qui mal y pense!
    7. Re: Why is this news? by Anonymous Coward · · Score: 0

      Also, fuck systemd. Moreover, something appy apps cause something luddite, apps.

    8. Re:Why is this news? by Anonymous Coward · · Score: 1

      What would happen if one of the Slashdot editors was an SJW who had worked for Apple on iTunes, moved to Microsoft to work on the privacy features of Windows 10, was a scripting developer against strongly-typed languages and had once tweeted that Linux wasn't ever going to be ready for the desktop? Would that achieve peak meltdown or would she need to be against marijuana and piracy too?

    9. Re: Why is this news? by Anonymous Coward · · Score: 0, Informative

      "Elections have conquences." -- H. Obama

      "They Can Come For The Ride, But They Have To Sit In Back" -- H. Obama

    10. Re: Why is this news? by PopeRatzo · · Score: 1

      "You can grab her pussy." - D. Drumpf

      --
      You are welcome on my lawn.
    11. Re:Why is this news? by Ol+Olsoc · · Score: 1

      OK, I hate SJWs who use Windows 10. They are the worst, not only do they kill kittens but they eat them too. Is that OK?

      A Beowulf cluster of whining! Netcraft confiirms it! Moo?

      --
      The shepherds did so well protecting the flock that the sheep no longer believed that wolves existed.
    12. Re: Why is this news? by Anonymous Coward · · Score: 0

      "Vessel For Male Gratification Very Sad Today" - The Onion

    13. Re:Why is this news? by hughbar · · Score: 1

      Sh** I forgot to complain about Slashdot editors. Total fail as cluster-whinge, as opposed to cluster-****.

      --
      On y va, qui mal y pense!
    14. Re:Why is this news? by Anonymous Coward · · Score: 0

      It's rank propaganda of the lamest kind.

      And a shit movie.

    15. Re: Why is this news? by Raenex · · Score: 1

      Drumpf

      It's lame insults like this that are part of the reason Clinton supporters lost. Thank you John Oliver.

    16. Re: Why is this news? by Anonymous Coward · · Score: 0

      Are you against grabbing pussies? What are you, a puff pervert bound by anal?

    17. Re:Why is this news? by Applehu+Akbar · · Score: 1

      It's rank propaganda of the lamest kind.

      And a shit movie.

      What would speculating about a hypothetical alien contact be propaganda for, exactly?

    18. Re: Why is this news? by PopeRatzo · · Score: 1

      It's lame insults like this that are part of the reason Clinton supporters lost.

      But quoting the president as "H. Obama" didn't bother you, did it? Lame insults are OK, as long as it's the right goose that's getting cooked, ain't that right?

      --
      You are welcome on my lawn.
    19. Re: Why is this news? by Raenex · · Score: 1

      "Drumpf" doesn't bother me. It's just amusing that's the best the left came up with and then they ran with it.

    20. Re: Why is this news? by PopeRatzo · · Score: 1

      "Drumpf" doesn't bother me. It's just amusing that's the best the left came up with and then they ran with it.

      And you don't find "H. Obama" amusing? Eight years and the highest approval rating since Kennedy and making fun of Obama's middle name (and race, and birthplace) is the best the right could come up with?

      --
      You are welcome on my lawn.
    21. Re: Why is this news? by Raenex · · Score: 1

      And you don't find "H. Obama" amusing?

      I never noticed. It used to be "Barack Hussein Obama" back in the day. That at least had an emotional impact. "Thanks, Obama" was kinda funny. The lamest had to be "Obummer".

      But Obama wasn't running, Crooked Hillary was. See, now that's an effective insult.

    22. Re:Why is this news? by rickyslashdot · · Score: 1

      I would have tagged this as flame-bait, troll, or just total BS, but the thread is way too long, and I don't have infinite karma points to nail each post.

      I guess it's just part of the crap we all live with in an open forum like /.

      I liked the article, enjoyed the insight into the usage of novel material in a new film, and would like to see this trend expand into future works of movie productions.

      --
      redneck geek
    23. Re:Why is this news? by Jack9 · · Score: 1

      Tracking everything Wolfram does (especially dead-end projects nobody sees) is not news. I agree it looks more like a viral marketing bit.

      --

      Often wrong but never in doubt.
      I am Jack9.
      Everyone knows me.
    24. Re:Why is this news? by Anonymous Coward · · Score: 0

      You forgot about systemd

    25. Re: Why is this news? by Anonymous Coward · · Score: 0

      With a quote that, people couldn't figure out why Obama couldn't work with Congress or anybody else?

    26. Re:Why is this news? by vandamme · · Score: 1

      OK, I hate SJWs who use Windows 10. They are the worst, not only do they kill kittens but they eat them too. Is that OK?

      Not if they use systemd

    27. Re:Why is this news? by RockDoctor · · Score: 1

      It would be worse if they killed the kittens but did not eat them, meaning their deaths were a total waste.

      --
      Birds are not dinosaur descendants;birds are dinosaurs, for all useful meanings of "birds", "are" and "dinosaurs"
  2. Stephen Wolfram came up with an answer overnight by hcs_$reboot · · Score: 3, Funny

    Easy. He just asked Worlfram Alpha.

    --
    Slashdot, fix the reply notifications... You won't get away with it...
  3. This is 'Viral Marketing" or Viral advertising... by Anonymous Coward · · Score: 1

    I remember when "Elysium" came out, there was a similar campaign of 'suddenly' random story topics on every blog site about that movie too...

    Viral marketing and fake news.... blech!

  4. Re:Stephen Wolfram came up with an answer overnigh by Anonymous Coward · · Score: 0

    He just asked Wolfram Alpha.

    Doesn't that make it circular reasoning?

  5. Futurist? by Anonymous Coward · · Score: 0, Troll

    You mean failed scientist ("A new kind of science", anyone?)?? Or self-propelled huckster? Or delusional Space Nutter?

    " In fact, for all we know, there's just some simple "hack" in existing physics that'll immediately make interstellar travel possible. "

    "Fact"? "Know"? No. The fact is there's no such hack. We are here, they are there. End of story. To think otherwise is religion. (That's the "immediately" part.)

    To programmers and other such mental wankers, they think that making patterns on a screen is the same as physical results.

    1. Re:Futurist? by Calydor · · Score: 1

      You seem to not understand how that expression works.

      --
      -=This sig has nothing to do with my comment. Move along now=-
    2. Re:Futurist? by Anonymous Coward · · Score: 1

      There is a lot of truth in this trolling. Wolfram was supposed to be the new Einstein. He did work on cellular automata that, while competent, it is not beyond what a competent graduate student would do. He moved into the computer algebra world, lifting ideas and thousands of lines of code from already existing system. His impact on science and mathematics has been negligible. The guy has been good at sucking the money in his company, blowing his own trumpet hard, and little else. He commands no respect whatsoever in the scientific community, who regard him as a useless gadfly.

    3. Re: Futurist? by Anonymous Coward · · Score: 1

      Yes, but he had universities buying his software so students don't have to do their homework by hand..... Explains the election I guess

    4. Re:Futurist? by kencurry · · Score: 1

      There is a lot of truth in this trolling. Wolfram was supposed to be the new Einstein. He did work on cellular automata that, while competent, it is not beyond what a competent graduate student would do. He moved into the computer algebra world, lifting ideas and thousands of lines of code from already existing system. His impact on science and mathematics has been negligible. The guy has been good at sucking the money in his company, blowing his own trumpet hard, and little else. He commands no respect whatsoever in the scientific community, who regard him as a useless gadfly.

      Agree. I read "New kind of Science" thinking there would be some great insights. Nope. The guy did some interesting cellular automata bits, but nothing that deserved to be described as "New Science." He though that he was the only guy to see that dense complexity could arise from very simple instruction set. Guess he never heard of DNA.

      --
      sigs are for losers (except to point out that sigs are for losers)
    5. Re:Futurist? by Anonymous Coward · · Score: 0

      Which expression? "Futurist"? Michael Whelan is a futurist. The Terran Trade Authority books are futurism. None of those people think we're a rounding error away from warp drive. That's how it works.

    6. Re:Futurist? by Megol · · Score: 1

      Playing dense? Both "fact" and "know" are used in the right way in the quote you (or another AC) criticize. We have no proof there isn't a "hack" which means - in fact, for all we know, there could be a "hack".

      Repeat until you get it.

    7. Re:Futurist? by Anonymous Coward · · Score: 0

      You are referring to two words, not expressions. The OP was talking about *an* expression, singular. You seem to know an awful lot about what someone else is thinking.
      So maybe you can explain to me how you got from *an* expression to two words, and tell me again who is dense?

      "We have no proof there isn't a "hack" which means - in fact, for all we know, there could be a "hack"."

      This is so stupid we might as well stop there. We have no proof the hack isn't a piece of chocolate cake. That's not how science works. That's not how anything works.

      Holy fuck.

    8. Re:Futurist? by Anonymous Coward · · Score: 0

      He did give as boost to the new, "math is the real reality," movement that nurtures string theory and other physics nonsense.

    9. Re: Futurist? by Anonymous Coward · · Score: 0

      In-fact for all you know our three dimentional universe is the surface of a 4 dimentional hyper toroid, how do you know thete is not some way to take shortcuts between two points?

      Go back 100 years, most people would think you were bonkers if you thought going to the moon was a reality, or that quantum physics is a thing, or a global network of pocket sized supercomputers would be in our pockets.

  6. A network of interconnected nodes by Anonymous Coward · · Score: 0

    Just like anything worthwhile is.

    1. Re: A network of interconnected nodes by hughbar · · Score: 1

      Absolutely. Graph theory rules!

      --
      On y va, qui mal y pense!
  7. Transition from movie to documentary by sp4ni3l · · Score: 4, Funny

    As the code is real the rest of the movie now also must be real..........

    1. Re:Transition from movie to documentary by Anonymous Coward · · Score: 1

      As the code is real the rest of the movie now also must be real..........

      Well yes... that's the idea, sometimes adding elements of realism enhances the immersiveness of the story when you introduce the non real elements, sureley that's not a bad thing, just good execution of story telling.

    2. Re:Transition from movie to documentary by Anonymous Coward · · Score: 0

      Except that this minor nod to realism glosses over so much that was bad about this film in terms of realism that they totally screwed up...or just film viewers to accept their premise.

      For example showing a "glyph" that says "Human", than having the character point at herself while saying "we are human" is no way to get an alien race to figure out how to communicate with us. We are SO far past the "treat aliens like monkeys" phase.

      Seriously learning to communicate with an alien race where you assume they understand written language and can "see"/distinguish different objects should have taken all of a day assisted by computers. Instead of a whiteboard you bring in computers and screens and run through like 1000 different objects/ concepts, let the aliens do the same and you get to a pretty good level of understanding in a day or 2.

      Since learning how the aliens think takes up the whole movie I guess you can't have that solved in the first 5 minutes but that just means the movie is bad since it's based on entirely false premise. A little bit of "realistic code" doesn't solve that fundamental problem.

  8. SPOILERS? by Anonymous Coward · · Score: 0

    Please, anything about a current or even recent movie, tell me if it has - or does not have - SPOILERS at the start of of the damn article.

    1. Re:SPOILERS? by Anonymous Coward · · Score: 0

      SPOILER ALERT: You could just not click on the article instead of being a whiny little bitch if you haven't seen the movie. Also, Bruce Willis was dead the whole time in The Sixth Sense.

    2. Re: SPOILERS? by Anonymous Coward · · Score: 0

      And shhh.... Darth is Lukes farther

    3. Re: SPOILERS? by mattyj · · Score: 1

      And she's a dude!

  9. Schild's Ladder by Anonymous Coward · · Score: 1

    Sounds like he's been reading Greg Egan's "Schild's Ladder".
    https://en.wikipedia.org/wiki/...

  10. /. commercialised to the hilt. by Anonymous Coward · · Score: 0

    Okay, so CmdrTaco sometimes had weird stories, but after all this used to be his blog. But advertorials are so pre-millenial. If you are going to dress up advertising as news, have the common decency to be subtle about it, please.

    I really don't know why slashdot is still in my daily bookmarks list. EurekaAlert has far more 'news for geeks' than this site ever did, and even the BBC tends to be a few days ahead nowadays.

    1. Re:/. commercialised to the hilt. by Anonymous Coward · · Score: 0

      Of course you know we are here for the discussion, which BBC or whatever doesn't offer in any meaningful sense. I will grant you that the discussion isn't quite as sparkling or informative, or even as on-topic as it used to be. I mean, half of the posts on this discussion are indistinguishable from your average youtube comment.

  11. Viralator.pl in One Point O (2004) by Anonymous Coward · · Score: 0

    a favorite, regardless of context, seems to be the source code for nmap.c in Linux

    Or the uncredited Viralator.pl in One Point O (2004)

  12. Mirandakatz by Anonymous Coward · · Score: 0

    Weird. Nearly every story submitted was published. Never written a comment. Has only read slashdot two days in a row...

    Who is this person?!

  13. Re: This is 'Viral Marketing" or Viral advertising by Anonymous Coward · · Score: 0

    I also remember when they rebooted Elisium, how I was surprised that, in the future, that it ran on IDE drives. Also, I, like, commas.

  14. Opening damn sentence by Anonymous Coward · · Score: 0

    Do we need to know anything about the film? I liked knowing NOTHING about Arrival. I've seen no trailers, I know nothing except "hey a proper hard scifi movie is out and it's pretty cool, it's called Arrival" that's ALL I knew...

    I don't watch trailers, I go on recommendations from friends or online.

    Is this necessary?
    Posting anon to avoid the inevitable spoiler ridden replies.
    Seriously though, don't do this shit huh? The movie is brand new.

  15. Is there a Wolfram app? by Entrope · · Score: 1

    I app if there's a Wolfram app because I don't think I can fully app the Wolfram without an appy Wolfram to app.

    More seriously: Does Stephen Wolfram or ESR sound more pretentious and full of themselves when they switch into self-promotional blather mode (which, for either of them, seems to be at least a weekly event)? It's a tough call. "I wrote a book! I wrote this awesome code that everybody should use! Only I had the insights to address the problems of tomorrow, yesterday!"

  16. Loon by Hognoxious · · Score: 1

    attributes emerging from a low-level network of nodes, where long-range connections occasionally break out of three-dimensional space altogether.

    Like Alderson points? https://en.wikipedia.org/wiki/...

    --
    Confucius say, "Find worm in apple - bad. Find half a worm - worse."
  17. Good film except for one thing (soilers inside) by Anonymous Coward · · Score: 1, Informative

    Spoilers: if you still want to watch this movie, don't read this.

    Solid movie. The art was good, the dialogue felt alright, acting was fine, but then there's the thing of the plot.

    A respected linguist achieves a once in a lifetime achievement, far beyond any researcher's dream and all this is used for is a plot where she chooses to live out her own heteronormative fantasies of getting married, being a mother and so on. Does the world around her change? Apparently not, as her husband was unaware of their daughter's condition, so I'm guessing he didn't learn this alien alphabet business (too busy being a stereotypical father?) and while she teaches a course on these symbols it seems like every single thing is the exact same as when the aliens have landed.

    Basically, a deeply philosophical question means nothing more than one woman's boring dreams. And here's the thing: do you think that if the roles were reversed and the main character was a man, would the plot be about getting married and having kids? No, it would involve saving the world and "advancing humanity" or some such modernist nonsense. Hell, he ends up leaving his wife and child because apparently he has more important business.

    1. Re:Good film except for one thing (soilers inside) by sudden.zero · · Score: 2

      Spoilers: as the above comment said don't read if you want to see the movie. Very true. The plot could have been much better. I mean the current whole movie could have been summed up in the first five minutes. The Army pulls in a world renowned linguist to communicate with aliens that have landed. After some dialogue with the aliens they give her their language as a gift in return for help in the future. She finds that the Alien language allows her to see the future. This is where the plot could open up, and do just about anything, but obviously the writers failed us. She could have then used the power she gained from this alien language to change the world, stop a war, end world hunger, save mankind from a hostile invasion that the first aliens were there to warn us about (the help that they asked for in return for giving her the language), travel the universe, save mankind by finding a new planet after inventing interstellar travel. I mean the sky is the limit when you can see the future. Anything she wanted to do would always be funded because all she would have to do is fill out a lottery ticket and the next day she would have money. This movie could have went so many ways, but instead she chose to live out her normal mundane life, have a child that she knew was going to die of cancer (because she could see the future) and write a book even though all of that would cause her to get divorced. Who in their right mind would choose this existence!?!

    2. Re:Good film except for one thing (soilers inside) by ray-auch · · Score: 2

      > I mean the sky is the limit when you can see the future.

      I would think lack of free will was the more pressing limit...

      > Who in their right mind would choose this existence!?!

      Someone who didn't have a choice, because they already knew what they would do?

      [haven't seen the movie, not sure if I will or not, maybe that's the point...]

    3. Re:Good film except for one thing (soilers inside) by PPH · · Score: 1

      too busy being a stereotypical father?

      From Dave Barry's 'Guy Test':

      Alien beings from a highly advanced society visit the Earth, and you are the first human they encounter. As a token of intergalactic friendship, they present you with a small but incredibly sophisticated device that is capable of curing all disease, providing an infinite supply of clean energy, wiping out hunger and poverty, and permanently eliminating oppression and violence all over the entire Earth. You decide to:
      a. Present it to the president of the United States
      b. Present it to the secretary general of the United Nations
      c. Take it apart

      So, the movie was quite realistic IMO.

      --
      Have gnu, will travel.
    4. Re:Good film except for one thing (soilers inside) by Anonymous Coward · · Score: 0

      If you read the book, she did discover that sometimes, knowing the future means you just... surrender... yourself to what's to come.

      That's supposedly the wisdom she gleaned from understanding the aliens' philosophy.

    5. Re:Good film except for one thing (soilers inside) by Anonymous Coward · · Score: 0

      She finds that the Alien language allows her to see the future.

      Which makes zero sense at all. By what physical principle would any language, however complex, allow a being to see the future? Why did she need to learn a language to access that ability?

      It's the same BS as with Interstellar: mediocre fantasy pretending to be science fiction.

  18. Re:Stephen Wolfram came up with an answer overnigh by Ol+Olsoc · · Score: 1

    Doesn't that make it circular reasoning?

    Spherical reasoning. With cows and shit.

    --
    The shepherds did so well protecting the flock that the sheep no longer believed that wolves existed.
  19. no nmap.c in linux by Anonymous Coward · · Score: 0

    For the record: nmap.c is not in linux
    Never has been, and probably never will be.

    1. Re: no nmap.c in linux by Anonymous Coward · · Score: 0

      Nobody said it was. But nmap is often one of the first programs downloaded and compiled for Linux(for network admins,etc).

  20. Space is man's hopeless romance by Chewbacon · · Score: 4, Insightful

    Unless there is the "simple physics hack" space travel will be a royal pain in the ass when you take the planning that is involved. The energy problems, bio issues, logistics, all of it.

    Even if we overcome all of that, you'll be flying into the unknown. Think about it: you want to go see the pillars of creation a thousand light years away. There was a discussion that an explosion may have occurred or was imminent that would destroy them... a thousand years ago. So even if you found the hack tomorrow (say toasting pop tarts still in the Mylar in an upside down toaster) that lets you arrive at the pillars, or anywhere else, instantaneously, then whatever you went to see would have changed or have been long gone over the millennia. This is something sci-fi never fully discloses: hey, see that in the telescope? Let's go! Wait, where the fuck is it??

    So for an advanced civilization to find us and make contact, they'd have to have been watching for the past, what, 100 years to pick up on the noise we make or make on hell of a guess as to where we are.

    Still sounds like an adventure.

    --
    Chewbacon
    The Bible is like Wikipedia: written by a bunch of people and verifiable by questionable sources.
    1. Re:Space is man's hopeless romance by PPH · · Score: 1

      So for an advanced civilization to find us and make contact,

      The movie does raise some interesting questions. How exactly would we go about communicating with an alien race that appeared on Earth? Or caused some instrumentality of communications to appear (much more likely we'd get an automated probe)?

      Perhaps a hand raised with palm facing forward is an intergalactic sign of hostility and the middle finger extended indicates friendship. How would one go about establishing a common basis for communication? I'm not sure this movie went about it logically. The movie 'Contact' demonstrates a more plausible approach, although one constrained by one way communications. Full duplex presents some opportunists. But also some problems in that the aliens might figure that we are morons if we take too long to answer. Broadcasting 'Hello' continuously in every language at full power might also backfire if the aliens have autistic tendencies.

      What I wonder is whether some (federally funded) research has already been done to prepare a 'first contact' handbook. Chapter One: Fly a helicopter in the middle of the night to the residence of a noted linguist (with no advance phone call or anything), scaring the shit out of him/her.

      --
      Have gnu, will travel.
    2. Re:Space is man's hopeless romance by Anonymous Coward · · Score: 0

      The movie does raise some interesting questions. How exactly would we go about communicating with an alien race that appeared on Earth? Or caused some instrumentality of communications to appear (much more likely we'd get an automated probe)?

      The aliens landing right there implies that they want to talk, otherwise they would have either passed us by if we were meaningless to them or maybe wander about in armored suits simply ignoring us, or just bombard us from orbit if they already considered us to be a threat.

      Broadcasting 'Hello' continuously in every language at full power might also backfire if the aliens have autistic tendencies.

      That comes up in the novel "Blindsight" where the aliens in question are not truly sentient (although there is implication of them being bio-robots in a large automated probe ship) and don't even understand our attempts to talk to them.

    3. Re:Space is man's hopeless romance by mcgrew · · Score: 1

      This is something sci-fi never fully discloses:

      I take it you've never read Niven's A World Out of Time or Heinlein's Time for the Stars. Those are two off the top of my head. Are you one of those kids who hates to read and only watches movies? Because when it comes to TV and movies, most SF is terrible.

      Hell, look at The Martian. Wier did his homework, I saw nothing in the book that was bogus science. The movie? Guys, when you're in the airlock entering the station, the alarm will start out soft and low pitched, and the volume and pitch will rise with air pressure.

      That said, it was an excellent movie, but it can't hold a candle to the book. The movie has a few grins, the book has belly laughs.

      Books rule.

      Oh, yeah--a thousand years is the blink of an eye in geologic time. Sirius (only 8 LY away) and its system won't change any more than the sun and solar system did in the last thousand. But yeah, if you see a supernova, that part of space will be completely changed when you get there. Also, if you speak to someone on the phone you can expect their house to still be there when you arrive, unless there's been a gas explosion. Same thing. Travel to other galaxies? Yes, it will be fifferent.

    4. Re:Space is man's hopeless romance by Raenex · · Score: 1

      How exactly would we go about communicating with an alien race that appeared on Earth?

      Aliens smart enough for interstellar space travel should be smart enough to figure out our communications and communicate quite easily. They shouldn't even need to stick probes up our butt.

    5. Re:Space is man's hopeless romance by Anonymous Coward · · Score: 0

      I saw nothing in the book that was bogus science

      Did you read the same book as me? Literally every page I was smacking my head at the terrible mistakes he was making. Every page that had any sort of science claim at all had at least one error. Just awful. The guy doesn't even understand the difference between moles of a substance and liters or kilograms of it (those errors were particularly grating because he kept making the same ones again and again). His "botany" was embarrassingly bad again and again, with some errors the sort of thing even a sixth grader in biology class should be raising their hand to point out. His description of plutonium was pathetic. Oxygen levels dropped to below the point of unconsciousness and hydrogen levels up to mickey-mouse-voice levels and Watney doesn't notice? Um, sure. Weir even calls ASCII "ASC2". Some of his mistakes he later tried to retcon into an "I Knew That Was Wrong, I Did It On Purpose Anyway", like the "high wind force" dust storm. Weir, given that you messed up every bloody other thing, let me say that I don't believe you for a second.

    6. Re:Space is man's hopeless romance by Anonymous Coward · · Score: 0

      "Unless there is the "simple physics hack" space travel will be a royal pain in the ass"

      Or unless you are a machine travelling leisurely at a % of c with most systems off, a civilization of synthetic beings doesn't need to worry too much about time or resources, there is enough everywhere

    7. Re:Space is man's hopeless romance by Anonymous Coward · · Score: 0

      I like that you get the basic premise, that the Universe is a time machine. Everything that we see, that is at a non-trivial distance, is an image from the past. I'm speaking in human terms only; in the strict physical sense, everything we see is an image from the past, but for local action that effect can (usually) be ignored.

      However I think you overlook a couple of important matters. First off, the space-time distance to any object you wanted to travel to, would be a primary, top-priority consideration. In the top 3 things you would worry about, certainly. If you wanted to go witness any transient phenomena (let's say lasting a week or less just for this argument) you would never begin or even consider a trip where you witness the start of the phenomena here and yet the action is happening 1000 LY away. In fact one Light Week would be the maximum distance you would contemplate, and that's assuming you can travel from here to there instantaneously!

      Second, there is the matter of instantaneous travel. If you had such a capability, you do sharply limit your time risk in travelling. You could consider going to many places with a low probability of success or interest, considering that the trip time is essentially zero.

      Third there is the matter of astronomical lifetimes. Many stellar lifetimes, galactic phenomena, and similar, occur over extremely long periods of time. Billions of years are common. If you wanted to travel to the pillars of creation at a distance of 1000 LY, they are likely still going to be there, and mostly unchanged in that time. In fact let's say you can 'only' travel there at light speed, so it takes you 1000 years to get there. Again, the pillars will almost certainly still be there and still doing interesting things.

      But stepping back, there would be destinations very far away where it would be foolish in the extreme to go, thinking those would still be in the same place and in the same condition we see here, now. We can see galaxies tens of billions of light years back in spacetime. You could go there to try to figure out what happened to those galaxies. However it might be extremely difficult to even find them (and again, this assumes the ability of instantaneous travel).

    8. Re:Space is man's hopeless romance by Agripa · · Score: 1

      This is something sci-fi never fully discloses: hey, see that in the telescope? Let's go! Wait, where the fuck is it??

      It is disclosed sometimes if it matters although not by Hollywood. Just travel in the opposite direction. If it happened 1000 years ago, then move 1000 light years further back and use the telescope to watch what happened in real time.

    9. Re:Space is man's hopeless romance by Agripa · · Score: 1

      Unless there is the "simple physics hack" space travel will be a royal pain in the ass when you take the planning that is involved.

      We never did do any of our experiments beyond the local singularity. Obscure?

    10. Re:Space is man's hopeless romance by mattyj · · Score: 1

      Your ideas about time travel are limited by the breadth of current human knowledge.

      100 years ago people thought the moon was made of cheese, and now walking on it is passe. Your notion of a "simple physics hack" might be state of the art science for an alien species 200 light years away.

      What nobody proposes is that aliens think we're boring and would rather visit that one planet where where the ladies all have four boobs and men have feelings.

    11. Re:Space is man's hopeless romance by Chewbacon · · Score: 1

      No, I haven't. Yes, I do like to read. We are talking about movies here, however... did you read that?

      --
      Chewbacon
      The Bible is like Wikipedia: written by a bunch of people and verifiable by questionable sources.
  21. "its producers faced the question of how interste" by Anonymous Coward · · Score: 0

    " its producers faced the question of how interstellar spacecraft would actually work."
    This implies that NOBODY else has ever come up with any viable or otherwise ideas on how interstellar spacecraft would work --- the hubris of those....or sorry, the ignorance of those producers. There have been various ideas and concepts explored both scientifically and in science fiction for more than 60 years.

  22. Wolfram = the Trump of computer science by Anonymous Coward · · Score: 0

    Like his political analog, Stephen Wolfram shows that it is possible to rise to the top by self-promotion and buzzwords rather than substance. Case in point: nmap.c is the source code for nmap. No programmer would ever refer to "the source code for nmap.c", which, if taken literally, would refer to whatever was in Gordon Lyon's head when he wrote the code.

    1. Re:Wolfram = the Trump of computer science by 2.7182 · · Score: 1

      Thank you for saying this. I'm glad to see that the first comment was a sane one.

  23. Stephen Wolfram is a crank... by Anonymous Coward · · Score: 0
  24. alien communication by holophrastic · · Score: 3, Insightful

    I love when scientists describe intelligent alien communications as being difficult due to different "contexts". It really shows just how far scientists have travelled outside of their cities.

    Communications-outside-of-context are done all the time. Humanity's historical cultures don't play any role in a Canadian adult speaking with a third-world african child. Yet it's done all the time.

    Similarly, adopt a puppy. Learn to live with any intelligent animal. The first time that you catch your puppy in a lie, you'll know that you've learned to communicate across "contexts".

    If you want to communicate with an alien species, intelligent or otherwise, it's as easy as it's always been. Your "context" is the one thing you share -- the environment around you. Lock yourself in a room, a cabin in the woods, an asteroid adrift, a mysteriously-locked laboratory, and any two individuals (now sharing a "context") will figure out how to communicate with each other very very very quickly, and pretty darn efficiently too, using whatever works (physical touch, verbal commands, emotional cues, mechanical blocking, et cetera).

    In my life, I've trained two birds, four dogs, three cats, and a girl. I've been trained by one dog, two cats, and that very same girl.

    But this requires a very simple comprehension of communication, that I worry most people simply do not have. It is this: communication (of thought), however lengthy and prolonged, is the means to an end. That end is always action (or inaction). Taking away any opportunity for communication to surround action, makes communication utterly meaningless. It simply must relate to something else. And obviously so, since the communication of thought requires thought first, and that thought must be of something -- most often of truth. And any truth, once again, comes down to an observable and testable action.

    Train a puppy. Along the way, you'll discover that the puppy has trained you too. Sit back, and notice the new common language that's formed between you. It takes about a week -- most of which is about discovering the shared environment that now requires a common language -- you didn't need to talk to each other when you didn't share a house.

    1. Re:alien communication by Anonymous Coward · · Score: 1

      "Any two individuals"

      Yes, you're both humans.

      You mention human-animal interactions. Humans and different species, while we manage some level of communication, often interpret things in entirely different ways. For example, if you point at something, another human will look at what you're pointing at. Most animals will look at your finger. Without training, most dolphins will look at your finger, despite that they themselves "point" things out to each other - not with fingers, but with ultrasound. Which we in turn mistakenly identified as talking or simple scanning until very recently.

      We're so used to the "pointing" concept that we have a universal symbol for it that we recognize, the arrow. We're so used to the arrow symbol that it was foolishly used on the pioneer plaques - as if aliens would share the same symbol. Or even the very concept of pointing!

      Think of the case of Clever Hans. His trainer mistakenly thought that he was giving messages to his horse by the words he was saying - but it was actually in his posture. He interpreted his horse's stopping as him having given the answer to the question. The horse meanwhile was doing what horses do - being social animals, they close attention to the postures taken by their fellow herdmates, and his understanding of the game was that he gets a reward if he makes the right responses to the man's posture.

      And these are all fellow mammals, let alone a totally alien species.

      Different environments produce radically different species. If you think it's different here on Earth's surface versus, say, the bottom of a coral reef, that's nothing like the sort of differences alien species might encounter, or the means they might develop to communicate in their environment. For example, if there's no readily "passively receivable" data from their environment, perhaps they communicate by active scanning - electrical, optical, magnetic, acoustic, or other emissions, and interpreting the response. So others can see the transmission and response to. And so with time develop the ability to transmit a fake "response", like an echolocation pictogram. So language develops by them broadcasting literal moving images of what they're wanting to convey to each other, in the form of fake echolocation returns, which the recipient sees like a hologram in front of them.

      How are we going to interpret their language? First off, we probably won't sense it at all with our senses - odds are, with all of the possibilities, it's either a type of wave we don't have a sense for, or out of the ranges of ours. But if we interpret it with equipment? Great, we've got some waveform. We can play it back as audio, or try to plot it out in a graphical form, but learning to understand what that means is going to be no trivial task. The same applies in reverse. They're going to be confused as heck when they record our vocalizations and try to interpret it as some sort of pictorial echo image.

      This is just one example among countless.

    2. Re:alien communication by holophrastic · · Score: 1

      You won't do any of that garbage. When they move left. You'll physically block them, and say "no". You'll do it twenty times in a row. You'll be done.

    3. Re:alien communication by holophrastic · · Score: 1

      Dolphins pointing with ultrasound isn't pointing like an arrow. Humans pointing with a finger also isn't pointing with an arrow. Stop seeing things as language and communication when it isn't.

      Both of those are nothing more than a first-step. If you want to walk to the door, you start by taking one step. Then everyone around you knows that you are literally moving towards the door.

      If you're a dolphin, and the first step of using an object is to highlight it with ultrasound, then every interaction begins with ultrasound. So when you light something up, everyone around you knows you're interacting with it. Not because you "said" anything, and not because you "pointed" at it. You literally starting interacting with it the same way you've started interacting with everything you've every interacted with.

      Humans interact with everything the very same way -- we touch it with our hands. We grab food, we push things, we pull things, we feel things. I'll bet 95% of everything interaction you have starts with your hand moving towards an object. So, "pointing" with a finger is nothing more than you beginning that interaction.

      "pointing" then, is nothing more than the first-step of interactions. And, when we're merely talking, we stop at the first step, because that's enough. You'll no-doubt note that some people like to touch-and-turn an object about which they are speaking. Same thing.

      So, again. Want to understand a puppy? Notice that the very first thing they do any time they interact with anything of any kind any where, is to sniff it first. So, when your puppy moves his nose towards an object, whether or not he goes and smells it, he's talking about it to you. That's why one of the very first "tricks" I train in a puppy is "touch" where he touches his nose to something -- and if you really understand what I've been saying, then you won't be surprised that the first thing I teach him to to "touch" is the tip of my finger.

      His nose, my finger. Now we not only have a common verb: "touch", which extends to "show me" and "get it" and "what's that?" and "where is..." and ultimately "go to", but we also have our first translation -- nose == finger.

      Once we have nose is finger -- which is confirmed when I touch something then he goes and smells it -- then we get into what I do and don't want him to do very very very quickly.

      I touch a toy, he smells it, I say good boy and praise him and get excited.
      I touch a treat, he smells it, he eats it.
      I touch a deck of cards, he smells it, I say "no, bad boy" and push him away.

      I touch the deck of cards again, repeatedly, until he comes over to smell it, the moment he does, I say "no, bad boy" and push him away.

      I touch the deck of cards again, a lot, he hesitantly comes over to smell it, knowing that I called him over, I say "no!" he backs away immediately, as though he'd expected me to say no.

      I touch the deck of cards again, he looks at me, he looks at the cards, he takes one step towards the cards, he backs away again, he looks at me, he telepathically says "I'm staying away, is that what you want?" I say "good boy!" and get all excited. and give him a toy to play with.

      I resume my card game on the bed. He sits two feet away, relaxing with a toy.

      From then on, I don't need to wait for him to do something that I don't like. I make him do it. I tell him no. I make him do it again. I tell him no again. He understands.

      The ability to show my puppy what I don't want him to do, is, in my mind, probably the most important thing that I can communicate.

      Yeah, I stand in the middle of the street, while he's still on the sidewalk, and I tug on the leash until hes steps into the street with me -- then I tell him "no! bad boy! never!" Obviously, this one's a little more complicated in that it requires a little more repetition, in part because we don't spend as much time walking as we do in bed, but he quickly understands that he doesn't go into the street, and he doesn't even foll

    4. Re:alien communication by Anonymous Coward · · Score: 0

      "...communication (of thought), however lengthy and prolonged, is the means to an end. That end is always action (or inaction)."
      So, what is the ultimate action all this discussion on Slashdot is aiming at?

    5. Re:alien communication by lindseyp · · Score: 1

      >So, again. Want to understand a puppy? Notice that the very first thing they do any time they interact with anything of any kind any where, is to sniff it first. So, when your puppy moves his nose towards an object, whether or not he goes and smells it, he's talking about it to you. That's why one of the very first "tricks" I train in a puppy is "touch" where he touches his nose to something -- and if you really understand what I've been saying, then you won't be surprised that the first thing I teach him to to "touch" is the tip of my finger.

      So your first inter-species communication is literally "smell my finger"

      --
      j'ai découvert une démonstration vraiment admirable (de ce théorème général) que cette si
    6. Re:alien communication by holophrastic · · Score: 1

      What to study. Where to invest effort. Whether or not to go see the movie. What is and is not a waste of time, effort, money, and innovation. Teaching you what the ultimate action is.

    7. Re:alien communication by holophrastic · · Score: 1

      That's funny. I'd prefer to call it "focus all of your primary senses on all of my primary senses" -- which includes vision, hearing, and presence too -- but yeah, "smell my finger" would be the easy way to remember!

  25. Enjoyed it by sinequonon · · Score: 1

    It was an enjoyable read and provided some movie-making insight from a unique perspective. We could definitely use more scientific realism and plausibility in our movies. Thanks for posting.

    --
    -Bob-
  26. Re: Good film except for one thing (soilers inside by Anonymous Coward · · Score: 1

    It's worth reading Ted Chiang's short story, "Story of Your Life," which the movie is based on. It addresses this point in an interesting, even if not fully satisfying way.

  27. FTL not possible? by steveha · · Score: 1

    I have a dim understanding that modern physics believes that faster-than-light travel is not possible, full stop. I don't quite understand the equivalence, but FTL is the equivalent of time travel, and since we believe that time travel would violate causality, we believe that FTL is impossible no matter what mechanism you propose (teleportation, hyperspace, whatever).

    Even with the pretty diagrams I'm not sure I get it.

    http://www.theculture.org/rich/sharpblue/archives/000089.html

    I've also read that FTL shouldn't be impossible if the whole universe had a common frame of reference, but according to the theory of relativity, there is no such common frame of reference in the universe. But I've read a couple of discussions that say that maybe FTL would be possible if "hyperspace" or "subspace" travel imposes a common frame of reference. Again I don't really understand this.

    http://www.calormen.com/star_trek/FAQs/warp-faq.htm

    I'd love it if someone with physics understanding could explain it in a way that my poor grasp of physics can understand, using car analogies or whatever.

    --
    lf(1): it's like ls(1) but sorts filenames by extension, tersely
    1. Re:FTL not possible? by Maritz · · Score: 1

      FTL is only equivalent to time travel if it happens in a normal relativistic frame of reference. The idea of things like the Albubierre drive is that they cheat by getting the spacetime itself to move. Spacetime isn't subject to the usual restriction (in fact, if you believe in inflation {which you should} - space itself can expand many, many times faster than light) brought about by e = mc squared.

      --
      I do not want your cheap brainburning drugs. They are useless for work. And I am a working man today.
    2. Re:FTL not possible? by painandgreed · · Score: 1

      I have a dim understanding that modern physics believes that faster-than-light travel is not possible, full stop. I don't quite understand the equivalence, but FTL is the equivalent of time travel, and since we believe that time travel would violate causality, we believe that FTL is impossible no matter what mechanism you propose (teleportation, hyperspace, whatever).

      Not as I understand it. FTL travel is not possible in acceleration in Minkowski (flat) space (which most of our observable universe approximates very well). This is also where there becomes time travel. In Reinmannian (curved) space, things aren't so simple. Because it is curved there are multiple light-like paths between the same two points and these can be of different lengths, so one path can be considered FTL by the standards of the other path. Wormholes are an extreme version of this and although travel through one may seem to be FTL by an observer in normal space the path through the wormhole is equally valid and has its own distance and time associated with it. It may be time travel also to the observer in normal space, but that is also dictated by the path through the wormhole. Hyperspace is a similar situation but different as it is not any time of spacetime as we know it, but rather a different type of space probably like all the extra dimensions that string theorists keep talking about. The idea is that one leaves this space, goes totally into hyperspace, moves and then comes out again into normal space. Again, there is a path through hyperspace as the two points in normals space time are related to it, but either the natural laws in hyperspace are different and allow for greater than c travel or the distance between the two points is shorter.

      Those are hypothetical ways of FTL and time travel. Now, it could be that physics ends up showing that such things can't exist, but the general issue with FTL travel is with the special theory of relativity which only holds for flat spacetime (that's why it's "special"). Wormholes could be shown to be unstable and collapse anytime any information goes through them. There are things like time travel has talked about in real physics in things like "Rotating Cylinders and the Possibility of Global Causality Violation" by Tipler, Frank (Physical Review D. 9 (8): 2203–2206) but has also been argued against by a paper by Stephan Hawking. As far as I know theoretical physicists are still making bets on such things and in any case, have not been experimentally verified.

  28. They're already here ! by zapadnik · · Score: 1

    Aren't the aliens already here? I saw it on a documentary called "The South Park Movie". Everything on TV is true, right ?

  29. Stephen Wolfram as a futurist? by Darkness+Of+Course · · Score: 0

    This is logged under funny right? It's Sunday, a perfect day for a new comic. Sadly, the graphic itself is actually missing. There should have been a link to the now famously inaccurate Wolfram Bible explaining how his and his way alone to code the entire universe in python, with math. And there is confusing text in place of it. Obviously the writer forgot to flush the buffer from some PR for a movie(?) or an interactive marketing attempt from Wolfram Claims Copyright of Wikipedia Pages Corporation, dept of Corporate Overreach a sub-dept of Damned Fine Work with Amazing Hubris.

  30. Re: Left-wing elite by presidenteloco · · Score: 1

    You do realize that the opposite of elite is dumbass moron, right?

    I for one look forward to our new dumbass moron overlords.

    --

    Where are we going and why are we in a handbasket?