What are the potential consequences of using FTL technology in a sci-fi story?

[scifiscript]

Bear with me if this forum doesn't normally answer highly subjective questions. If this is a necro zombie repost of something asked five years ago my apologies. When is the suspension of disbelief or plausibility destroyed for you as a viewer, when watching sci-fi films? How much linear elasticity of scientific principals can you bear before you call BS? What are five sci-fi films set within its fictional realm did you simply accept and enjoy? What are five sci-fi films that you instantly hated and posted immediately on various social media the amount of suckage to not waste your money on? Thank you for your positive responses?

 

[Simon Bridge]

It depends on the overall film - I'll sit back and enjoy Plan 9 from Outer Space or Earth Girls are Easy for instance but had issues with disproportionate effects of godlike powers in Fantastic 4 ROTSS ... though it didn't stop me enjoying the film it did mar the effect.

The usual rule of thumb is to allow only one "get out of physics free" effect at a time. In SF this usually involves some sort of hypertech, "unobtainium", or psychic powers. You can then explore the possibilities of that one breach... this is why Star Trek has pretty much everything as some consequence of the Warp Drive which requires unobtainium in the dorm of the dilithium crystal.

The worse the breach the further in the background you want it.

 

[Ryan_m_b]

It's a difficult one to answer as there doesn't seem to be a hard and fast set of rules. I can watch some old star trek TNG episodes and enjoy them despite the amount of nonsense in them, others I can't stand. Acting, plot, nostalgia and all sorts of other factors come into play. Most science fiction is essentially fantasy but can get away with it if it is consistent (i.e. FTL is fine so long as it's used consistently rather than in different ways in a variety of situations to solve problems but only once). The real annoyances in terms of physics are the basics like not understanding space is big, not understanding orbit, not understanding momentum (e.g. when superman catches someone they should be crushed by the impact of hitting his arms just as much as the floor) etc.

Personally I also get annoyed by any of these tropes:
http://tvtropes.org/pmwiki/pmwiki.php/Main/RubberForeheadAliens
http://tvtropes.org/pmwiki/pmwiki.php/Main/EvolutionaryLevels
http://tvtropes.org/pmwiki/pmwiki.php/Main/InexplicableCulturalTies
http://tvtropes.org/pmwiki/pmwiki.php/Main/PlanetOfHats
http://tvtropes.org/pmwiki/pmwiki.php/Main/SingleBiomePlanet

It's entirely possible for a piece of science fiction to contain all of these flaws and still be enjoyable overall but it becomes harder the more they're included.

 

[DiracPool]

(i.e. FTL is fine so long as it's used consistently rather than in different ways in a variety of situations to solve problems but only once).

I've done some serious soul searching on this issue lately, Ryan, and have come to the conclusion that FTL travel is NEVER going to happen. Sorry to burst your bubble...

 

[Ryan_m_b]

I've done some serious soul searching on this issue lately, Ryan, and have come to the conclusion that FTL travel is NEVER going to happen. Sorry to burst your bubble...

Lol I'm well aware. That's why I characterised it as fantasy. I once read a good way of characterising different genres, (paraphrasing):

Contemporary fiction: about what is happening
Historical fiction: about what has happened
Science fiction: about what could happen
Fantasy fiction: about what can't happen

It's often argued that the latter two overlap and that most science fiction uses one fantastic plot device (e.g. FTL, forcefields, time travel), alternatively most science fiction is really modern fantasy set in a fictional future rather than a fictional past. Either way it's an interesting way of characterising.

 

[DiracPool]

Yeah, here's DP's prediction...we CAN navigate the cosmos because we are uber-intelligent PF-ers. It's not going to happen in the traditional, way, though. We are going to create a fictitious universe, and many of them, and "star trek" our way across them. Don't laugh at me, that IS what is going to happen.

But its going to be virtual.

 

[Ryan_m_b]

Yeah, here's DP's prediction...we CAN navigate the cosmos because we are uber-intelligent PF-ers. It's not going to happen in the traditional, way, though. We are going to create a fictitious universe, and many of them, and "star trek" our way across them. Don't laugh at me, that IS what is going to happen.

But its going to be virtual.

That's already happened. It's called fiction and it predates the virtual by quite a long way...

 

[dkotschessaa]

I think it depends on one's level of literacy in a given field. Then they will tolerate poetic license depending on whether or not it might be balanced with other factors (acting, plot, etc.) Up until recently, I couldn't watch any movies involving computers, because of all the nonsense speak (I remember a line... "Oh no! It's collapsing into another subdirectory" from an episode of Lois and Clark: The New Adventures of Superman. What??)

Also, "hacking" into a "mainframe" apparently involves going through tunnels on your screen until you break through some sort of a brick wall, after finding the "password" (Like, the baddie's pet's name or something, which doesn't meet any of the criteria for a secure password) and exclaiming "we're in!"

ahem, anyway.

I think the success of star trek was always that they did implausible things, but threw in little "pacifiers" for the science literate folks, like inertial dampers, Heisenberg compensators, etc.

"When asked "How does the Heisenberg compensator work?" by Time magazine, Star Trek technical adviser Michael Okuda responded: "It works very well, thank you."[3] (http://en.wikipedia.org/wiki/Transporter_(Star_Trek)#cite_note-3)

Some things we tolerate because it is just necessary (no FTL, no aliens). Some things we tolerate for drama's sake (Hearing explosions in outer space when ships blast each other).

I can tolerate such plausible attempts at implausibility with mediocre actors (star trek.) Or non-science/fantasy with quirky plots that I don't have to think about much (warehouse 13) or pseudoscience with a pretty compelling plot and just enough good acting to carry it the rest of the way (Fringe). My favorite is the hard sci-fi in magazines like Analog, which are stories written by scientifically literate folks(often scientists themselves), though not necessarily the best prose.

-Dave K

 

[HallsofIvy]

Ryan_m_b's reference to "Rubber Forehead Aliens" reminded me of a "Deep Space 9" episode. I was not a big fan of "Deep Space 9" nor do I particulary like any of the Star Trek episodes in which they "go back in time".
This particular episode the Deep Space 9 group, including the Klingon, Worf, go back to the "Trouble with Tribbles" episode from the orignal series. They actually had scenes from the original epsiode with the new people added photographicaly. Of course, in the original series, Klingon's did not have the "Rubber Foreheads", they just had dark complexions. Worf (who is wearing a large hat to cover his forehead) was asked "What happened?".
His answer? "We never talk about that"!

 

[dkotschessaa]

Ryan_m_b's reference to "Rubber Forehead Aliens" reminded me of a "Deep Space 9" episode. I was not a big fan of "Deep Space 9" nor do I particulary like any of the Star Trek episodes in which they "go back in time".
This particular episode the Deep Space 9 group, including the Klingon, Worf, go back to the "Trouble with Tribbles" episode from the orignal series. They actually had scenes from the original epsiode with the new people added photographicaly. Of course, in the original series, Klingon's did not have the "Rubber Foreheads", they just had dark complexions. Worf (who is wearing a large hat to cover his forehead) was asked "What happened?".
His answer? "We never talk about that"!

ha. I tried to watch DS9 and still can't get into it. But I'll have to track down that episode.

 

[jedishrfu]

Another one that stretched the imagination for me was Farscape with the living ship and the weird alien outfits.

I liked Stargate the movie and the series but not so much Stargate Atlantis because of the fantastical city that could rise and fall into the ocean. The original Stargate series was more modest in its set design and took some time getting used to after having seen the movie. Tthe cool movie warrior head-dress deployment was great but the weaponry seemed rather limited for a race so advanced.

For me if they violate one principle of Physics (say using FTL) that's okay but if they start bending the rules here and there then I lose interest. Stargate had one noticeable episode when they opened the gate onto a planet being swallowed by a black hole. I felt they tried to do justice to the physics there while trying to close the gate (wrt to time dilation) as you got closer to the black hole although I think they should have been taffyfied (squeezed and stretched like taffy) in the process.

 

[Ryan_m_b]

A strange observation I've had whilst thinking about this topic: more in film than TV people are bothered with inconsistencies in technobabble. For example: it kicks people out of the narrative if Crewman Redshirt dies from a cut when two scenes earlier the Doctor healed the Captain's severed head by waving his Medical Wand. However sometimes these inconsistencies are good for popularity because they create debate. It doesn't take much googling to find endless threads on forums discussing all manner of inconsistencies in shows like Star Trek and films like Star Wars. These kind of discussions often continue along the lines of "Who would win in a fight between Starship X and Spacecraft Y?" and contributors gain satisfaction trawling through examples of how technobabble worked in one way or another.

This phenomenon (if I'm characterising this correct) is probably very hard to pull off deliberately!

 

[zoobyshoe]

When is the suspension of disbelief or plausibility destroyed for you as a viewer, when watching sci-fi films?

The worse the breach the further in the background you want it.

I have the opposite view of Simon Bridge. The worse the breach the more in the foreground it should be, baffling and shocking the characters, upsetting their world view. For example, encountering aliens with faster-than-light travel capabilities should be a major and disturbing plot event, not one that's trivialized by quick, easy acceptance.

 

[scifiscript]

I've done some serious soul searching on this issue lately, Ryan, and have come to the conclusion that FTL travel is NEVER going to happen. Sorry to burst your bubble...

If an author set his fictional universe 500 years from now is FTL plausible?

 

[Simon Bridge]

If an author set his fictional universe 500 years from now is FTL plausible?

Guessing you mean FTL in terms of star-travel... it requires overcoming some specific problems that suggest that it is implausible ever... but SF is inherently speculative so one can speculate that the laws we know are a subset and some super-law will allow it in special circumstances.

Have you read through:
FTL Travel and relativity FAQ
... part IV deals with the specifics of what FTL will mean while the earlier parts provide a crash course on the physics. Most SF gets around the problems by making sure the circumstances never comes up.

FTL in general terms is possible already - just not useful for SF ... and there are suggestions that large amounts of negative energy via the Casimir effect will allow slightly FTL signals ... at least if some hyped proposals work. This is still fringe stuff but you can build a what-if story around it. If it does work, then 500 years is plenty of time for the technology to develop to exploit it.

FTL travel gets you lots of uber-tech - ftl communication, time travel etc.
The challenge for an author is to figure what role travel to different Worlds plays in the story.

 

[scifiscript]

Going by the grading scale created by Ipetrich https://www.physicsforums.com/showthread.php?t=663752
My personal SOD falls between plausibly hard to medium.

passes

Futureworld- many of the technological inventions came to pass. motion control joysticks, 4d motion simulators, animatronic heads, the suspended vertical bed may have influenced the cargo netting style seats used in the army hummer, the androids monitoring the central control room is the equivalent of a drone craft.

Aliens- its plausible that an alien species could exhibit a higher cognitive hive mentality.

Terminator 2- the T800 used a nuclear battery, the T1000 was essentially ferrofluid .

Predator- thermal vision to hunt prey in dense foliage. in real life pit vipers feel heat to hunt prey. cloaking technology is being developed with the use of metamaterials

1984- Homeland Security, London CCTV

failures

Transformers 2,3,4- the metal the cybertronians are made from must be very similar to Reynolds Wrap

The Dark Knight Rises- basically everything he said

CSI all spinoffs- 100% of all crimes solved

Chain Reaction- how does the creation of a water fusion generator threaten the status quo of the oil industry?? wouldn't every petroleum based vehicle have to be converted. last I checked solar energy is free. solar panels not so free.

Deja Vu- Denzel was already in a paradox prior to knowing about the spacefolding technology. his dna was already at the crime scene. then he created a gross conflict of interest by being romantically inclined to the victim, which should have created a reality destroying paradoxical backlash. aka marty mcfly marrying his mom.

 

[dkotschessaa]

On a semi-random but related note, I just saw this:

"George R.R. Martin and Joss Whedon walk into a bar. Someone you love dies."

 

[Mute]

In the movie Battleship, my suspension of disbelief was destroyed right out of the gate when the main male character won over the token hot girl by stealing a chicken burrito for her. Who gets won over by a chicken burrito?!

The rest of the movie seemed believable by comparison.

 

[dkotschessaa]

In the movie Battleship, my suspension of disbelief was destroyed right out of the gate when the main male character won over the token hot girl by stealing a chicken burrito for her. Who gets won over by a chicken burrito?!

The rest of the movie seemed believable by comparison.

"B 6!" - Best movie line ever.

Seriously I didn't actually watch that movie, on principal. I just assume that has to be in there somewhere.

Right?

-Dave K

 

[Simon Bridge]

In the movie Battleship, my suspension of disbelief was destroyed right out of the gate when the main male character won over the token hot girl by stealing a chicken burrito for her. Who gets won over by a chicken burrito?!

... I'd go for it ... but you are right: hot chicks don't look at a guy for less than a cheeseburger!

(re. Seth Brundle/Geff Goldblum: The Fly )

I think a movie can have a lot of bad science and still be fun - Battleships didn't try to take itself seriously ... a Battleship doing a handbrake turn?! Just enjoy the corniness. That's one of the things - if the movie makes an effort to look scientific, then a small deviation can spoil it ... how many people with a science research background got really annoyed at the sloppy research methods and discipline from the team in Prometheus? Or being able to run and fight after having an emergency c-section without anasthetic?

A good source of the more fun critiques is the HISHE website.
http://www.howitshouldhaveended.com/videos

 

[Vanadium 50]

I remember a review of "While You Were Sleeping":

I've seen angels, I've seen demons. I've seen men fly. I've seen aliens. I've seen Godzilla destroy Tokyo. I've seen people rise from the dead and talking pigs. I've seen giant apes climb the skyscrapers of New York. But I have never seen anything as unbelievable as Sandra Bullock unable to find a date on a Saturday night.

 

[Mute]

"B 6!" - Best movie line ever.

Seriously I didn't actually watch that movie, on principal. I just assume that has to be in there somewhere.

Right?

-Dave K

Something like that was definitely uttered. However, at no point in the movie do they say "You sunk my battleship!". A travesty, I say.

Actually, the greatest travesty of the movie is that Liam Neeson is in it and at no point does he kill all of the aliens. I mean, I don't understand why every Liam Neeson movie is not just a re-hash of Taken. This should have happened:

"I don't know who you are, or where you're from. I don't know what you want. If you want me to take you to our leader, I can tell you I don't have a high enough security clearance to do that... but what I do have are a very particular set of skills. Skills I have acquired over a very long navy career. Skills that make me a nightmare for people like you. If you leave my planet now, that will be the end of it - I will not look for you, I will not pursue you... but if you don't, I will look for you, I will find you... and I will sink your battleship.

 

[jedishrfu]

Well if you were to steal the hot girl's cheeseburger...

 

[dkotschessaa]

Something like that was definitely uttered. However, at no point in the movie do they say "You sunk my battleship!". A travesty, I say.

Actually, the greatest travesty of the movie is that Liam Neeson is in it and at no point does he kill all of the aliens. I mean, I don't understand why every Liam Neeson movie is not just a re-hash of Taken. This should have happened:

"I don't know who you are, or where you're from. I don't know what you want. If you want me to take you to our leader, I can tell you I don't have a high enough security clearance to do that... but what I do have are a very particular set of skills. Skills I have acquired over a very long navy career. Skills that make me a nightmare for people like you. If you leave my planet now, that will be the end of it - I will not look for you, I will not pursue you... but if you don't, I will look for you, I will find you... and I will sink your battleship.

Wait, Battleship was about aliens??

This movie is getting more confounding by the minute and I still haven't seen it...

 

[Ryan_m_b]

I remember a review of "While You Were Sleeping":

I've seen angels, I've seen demons. I've seen men fly. I've seen aliens. I've seen Godzilla destroy Tokyo. I've seen people rise from the dead and talking pigs. I've seen giant apes climb the skyscrapers of New York. But I have never seen anything as unbelievable as Sandra Bullock unable to find a date on a Saturday night.

Funny quote and it's unfortunate that there is an underlying problem here. It reminds me of the TV show New Girl in which Zooey Deschanel (a woman who matches all the Hollywood standards of beauty) has to play a social awkward looser who struggles to find love, work etc. They writers have to make sub contrived situations for her not to seem attractive to people and it isn't believable. It's worrying how much of TV and film can't abide putting a less than perfect looking actor on and so casts beautiful people as though they weren't.

 

[DennisN]

When is the suspension of disbelief or plausibility destroyed for you as a viewer, when watching sci-fi films? How much linear elasticity of scientific principals can you bear before you call BS?

I think this is a cool thread, fun to read . I personally care more about acting and story - but this can also be subjective, of course. My basic opinions are: a movie with a good story, reasonable acting, but doubtful/bad science can still be entertaining to me. But a movie with a lousy story, bad acting but otherwise acceptable science would not be entertaining to me.

What are five sci-fi films that you instantly hated and posted immediately on various social media the amount of suckage to not waste your money on?

Not hated, I don't care that much about it , but here comes some horrible stuff:

Matrix - human batteries. Let me repeat, human batteries. Nooooooo... I've even calculated on it (since some of my friends did not think human batteries would be a lousy idea). The current population on Earth would ideally produce somewhat more power than all nuclear power plants, IIRC, but: HUMANS NEED TO BE FED AND EXERCISED. Were the machines growing potatoes to feed the humans? I did not see any potatoes. Why not grow trees and burn them instead, or something? Or nuclear? Solar power? Computer says no.

Signs - powerful, presumably intelligent(?) aliens invade Earth. But after a while they decide to leave, since water is like acid to them. Didn't they do any research before the invasion? Earth's surface is 30% land, 70% water. It often rains. Never mind, let's invade.

Prometheus - script like a bucket full of holes. Unfair to the bucket, it can still hold some water for a while. I got sick after watching it. I'm still not sure if it was because of the 3D or because of the plot.

The Postman - one of the worst movies I've ever seen. No further comment.

Blade Runner - not that I think it's particularly bad (and it's rather unfair to compare it to the other four horrible specimens above), I just think Blade Runner is grossly overrated - and my friends hate me for saying so ). It's a beautiful movie, but pretty shallow and so slooooooooooow it should be called Blade Crawler.

What are five sci-fi films set within its fictional realm did you simply accept and enjoy?

There are many movies I like for different reasons, but I'll mention these to get some kind of variety;

Contact - nothing at all for me to complain about, top rating from me. Enjoyable from start to end.

Gattaca - because of the story and the moral dilemmas which I think we very much might face in the not so far future.

Alien & Aliens - simply wonderfully creepy and entertaining.

The Truman Show - because it was eerily prophetic and very thought provoking.

The Core - totally and utterly unbelievable, but I still enjoyed it. I don't really know why. Maybe it blew out all of my brain's belief fuses and made me accept anything.

Also, "hacking" into a "mainframe" apparently involves going through tunnels on your screen until you break through some sort of a brick wall, after finding the "password" (Like, the baddie's pet's name or something, which doesn't meet any of the criteria for a secure password) and exclaiming "we're in!"

Haha, yeah, that's classic. I'll never forget Jeff Goldblum's "uploading virus" in "Independence Day". He succeeded in programming a virus to knock out an alien computer in how much time? One day, maybe? While nobody could even speak their language... amazing skills!

 

[DennisN]

I just remembered some fun movie review quotes regarding the movie "Alone in the Dark" (not SF, and I haven't even seen it, luckily, I think);

"A million monkeys with a million hammers, standing in a line, hitting each other in the head repeatedly, then forced with their fingers to use the brain fluid and blood to draw on a piece of paper could not come up with a script that makes less sense than this movie." (source)

"When the giant, intelligent bees of the future sift through the ashes of our civilization, they will find Alone in the Dark, and they will understand. It's so bad it's postmodern." (source)

"It's never good when the audience starts laughing as soon as the movie begins -- and nothing has happened." (source)

"Alone in the Dark is no better than whatever you might pick up while wearing a blindfold at Blockbuster, even if you happen to reach into a trash can."

"The other practitioners of cinematic drivel can rest a little easier now; they can walk in the daylight with their heads held high, a smile on their lips and a song in their hearts. "It's okay," they'll tell themselves. "I didn't make Alone in the Dark." " (source)

 

[dkotschessaa]

Haha, yeah, that's classic. I'll never forget Jeff Goldblum's "uploading virus" in "Independence Day". He succeeded in programming a virus to knock out an alien computer in how much time? One day, maybe? While nobody could even speak their language... amazing skills!

Before it happened, I actually turned to my friend in the theatre and said "Ok, if he defeats these aliens with his macintosh laptop I am walking out."

Of course, I was joking/bluffing. I didn't actually think he would do it...

He did... I stayed.

-Dave K

 

[bp_psy]

For me it's the other way around. If the movie is enjoyable then I can get over any piece of absolute nonsense. For example in Doctor Who everything is nonsensical but I still think it's great. On the other hand we have some pretty terrible movies for which the only fun thing is looking for nonsense science. Examples : The brown ball unraveling DNA from Prometheus. The NEW artificial element from Iron Man 2. Oblivion as a whole.

 

[dkotschessaa]

For me it's the other way around. If the movie is enjoyable then I can get over any piece of absolute nonsense. For example in Doctor Who everything is nonsensical but I still think it's great. On the other hand we have some pretty terrible movies for which the only fun thing is looking for nonsense science. Examples : The brown ball unraveling DNA from Prometheus. The NEW artificial element from Iron Man 2. Oblivion as a whole.

Oh Doctor Who is amazing. And not a bit of science in it.

 

[bp_psy]

Oh Doctor Who is amazing. And not a bit of science in it.

There is more science on the inside.

 

[Digitalism]

I dislike hokey spiritual references as ways of solving dilemmas in science fiction. The ending of battlestar galatica didn't do it for me. The same could be said for ds9, babylon 5's wrap up of the vorlon/shadow conflict, wrap up of lost, wrap up of Hyperion series, etc

 

[scifiscript]

A few scenes come to mind as far as being highly realistic in a sci-fi space drama.

Supernova(2000) Robin Tunney's character is blown out the hatch. The remaining oxygen in her lungs is expelled and instantly freezes propelling her deeper into space.

Aliens(1986) Sigourney Weaver's character hooking her arm on the ladder inside the airlock. The rest of the scene requires her to have the strength of She-Hulk. I still give the movie two thumbs up!

2001: A Space Odyssey(1968) When Hal 9000 pushed the doctor off into space. That has to be a very horrifying potential risk for any astronaut.

 

[scifiscript]

Guessing you mean FTL in terms of star-travel... it requires overcoming some specific problems that suggest that it is implausible ever... but SF is inherently speculative so one can speculate that the laws we know are a subset and some super-law will allow it in special circumstances.

Have you read through:
FTL Travel and relativity FAQ
... part IV deals with the specifics of what FTL will mean while the earlier parts provide a crash course on the physics. Most SF gets around the problems by making sure the circumstances never comes up.

FTL in general terms is possible already - just not useful for SF ... and there are suggestions that large amounts of negative energy via the Casimir effect will allow slightly FTL signals ... at least if some hyped proposals work. This is still fringe stuff but you can build a what-if story around it. If it does work, then 500 years is plenty of time for the technology to develop to exploit it.

FTL travel gets you lots of uber-tech - ftl communication, time travel etc.
The challenge for an author is to figure what role travel to different Worlds plays in the story.

Very dense information. The example of the life time of a muon was easier to understand than the moving train example.

 

[scifiscript]

In the movie Battleship, my suspension of disbelief was destroyed right out of the gate when the main male character won over the token hot girl by stealing a chicken burrito for her. Who gets won over by a chicken burrito?!

The rest of the movie seemed believable by comparison.

It must be the same irresistible quality as the $5 milkshake in Pulp Fiction.

 

[dkotschessaa]

I dislike hokey spiritual references as ways of solving dilemmas in science fiction. The ending of battlestar galatica didn't do it for me. The same could be said for ds9, babylon 5's wrap up of the vorlon/shadow conflict, wrap up of lost, wrap up of Hyperion series, etc

Avatar. Supposedly spiritual beings on an alien planet who are really just plugged into the tree internet all day.ugh

 

[Simon Bridge]

A few scenes come to mind as far as being highly realistic in a sci-fi space drama.

This should be useful to see what you would consider an acceptable level of unreality ;)

Supernova(2000) Robin Tunney's character is blown out the hatch. The remaining oxygen in her lungs is expelled and instantly freezes propelling her deeper into space.

The effect of exposure to hard vacuum is something movies almost always get wrong - but, to be fair, it is very difficult to do.

You seem to have been struck by the final exhalation (a) freezing, and (b) showing a noticable effect on Tunney's motion. Have you checked these - like, how fast would the air have to be expelled in order to produce that extra speed?

Aliens(1986) Sigourney Weaver's character hooking her arm on the ladder inside the airlock. The rest of the scene requires her to have the strength of She-Hulk. I still give the movie two thumbs up!

Hanging onto something was probably a reasonable thing to expect Ripley to do - but would it really have required super-strength to avoid being sucked out? The decompression occurred of an extended time so it didn't even count as "rapid decompression".

Real life: Flight Attendant C.B. Lansing was blown from Aloha Airlines Flight 243 when a large section of cabin roof (about 18 by 25 feet (5.5 m × 7.6 m)) detached; the report states she was swept overboard rather than sucked through the hole. She was unfortunate enough to be standing right below the initial rupture - other unsecured attendants were not affected. iirc: that was a "rapid decompression".

2001: A Space Odyssey(1968) When Hal 9000 pushed the doctor off into space. That has to be a very horrifying potential risk for any astronaut.

So it was the horror of the scene that struck you as the particularly realistic bit?

It's tricky to judge - astronauts talk about EVAs quite a lot - it's something of a highlight in a mission. They do not seem to particularly think about becoming untethered and floating freely and there are usually lots of safeguards.

By comparison with shuttle missions, the Discovery (2001:ASO) mission seems to have been characterized by a relaxed attitude to safety. (Though the day-to-day mission profile did kinda rely on the Hal 9000 system to work as expected.)

Astronaughts come from a group of people who are attracted to extremely dangerous jobs. If they were the sort of people prone to being overcome by horror at a developing situation, they would not be much use as astronauts.

Probably the best RL example of how astronauts act in hopeless situations of certain death would be on the Apollo 13 mission - the tension levels went up but everyone got on with the next thing on the list.

Most space accidents are very quick though and crew barely have time to realize that something is wrong. You can get a glimpse of the mentality, though, from cockpit recordings of test/stunt pilots - i.e. Art Scholl (died shooting a stunt sequence for "Top Gun"), caught in an inverted flat spin at 3000ft said "I've got a problem" and when he was still in that spin at 1500ft said "I've really got a problem".
http://www.skygod.com/quotes/lastwords.html

But it's an interesting question - I have not found a record of anyone putting it to an astronaught.

However - just a cursory examination of these examples suggests you are not all that worried about real science in your SF ... that's no biggie - the point is to tell a story not teach physics.

 

[Simon Bridge]

Very dense information. [FTL and relativity faq] The example of the life time of a muon was easier to understand than the moving train example.

Well it's a crash course - the information in there would normally be delivered to students over a year.
Curious though - most people prefer the moving train one: they find "muons" just too exotic and suffer brain-freeze.

You need to be able to get space-time diagrams and then read the last part for the main issues with FTL - but you see the nitty gritty of what needs to be overcome to have FTL travel and what else it gives you?

You can also see why so many movie producers will pay for a science consultant ;)
It's not trivial.

 

[scifiscript]

However - just a cursory examination of these examples suggests you are not all that worried about real science in your SF ... that's no biggie - the point is to tell a story not teach physics.

I'm into a realistic approximation of what I believe could reasonably occur.

I mentioned Ripley in Aliens needed the strength of She Hulk not because of rapid decompression. The ship she was on had artificial gravity. The queen alien grabbed Ripley with her tail. The airlock slowly opened.

A) Do the occupants in an airlock exposed to outer space experience weightlessness?

OR

B) Are you only exposed to weightlessness outside the confines of the artificial gravity?


This isn't a direct analogous situation but similar enough. In reference to being untethered in outer space.

I have over a decade experience working in a integrated steel mill. You can become dangerously comfortable working around molten metal. But soon as SHTF you're reminded the danger is always present. I'll try and paint a description for those unfamiliar with the steel industry. The BOP making a HEAT at night would be similar to watching a volcano erupt at night. Impressive and lethal all at once. If you can imagine a steel warehouse an 1/8 of a mile long during the coldest winter feeling like a warm spring breeze after a HEAT. Did I mention molten metal and water don't mix. The reason that people are able to do that level of work isn't because they're cut out for it. Its because they traded their personal health and happiness for $20hr.

 

[scifiscript]

Well it's a crash course - the information in there would normally be delivered to students over a year.
Curious though - most people prefer the moving train one: they find "muons" just too exotic and suffer brain-freeze.

You need to be able to get space-time diagrams and then read the last part for the main issues with FTL - but you see the nitty gritty of what needs to be overcome to have FTL travel and what else it gives you?

You can also see why so many movie producers will pay for a science consultant ;)
It's not trivial.

This might be a copout or a layman's perspective concerning FTL. If you believe in GOD with no further explanation simply that HE/SHE exists. Then how much of a stretch is FTL with no extensive explanation.

Scientist
Using the inverse of Lenz's law. I'm able to create single polarity spheres in a meta-stable configuration. Cosmic rays are channeled through a aerogel waveguide. This super saturation of nuclei allows me to strip mine the valence shell electrons as a means of FTL propagation.

Red Shirt Ensign
I don't doubt anything that you say. I'm just trying to make it through the end of the episode.​

 

[Simon Bridge]

I'm into a realistic approximation of what I believe could reasonably occur.

That's pretty much what I said.
So long as you realize that what you think is a realistic approximation of what you believe could reasonably occur is very unrealistic and unreasonable in terms of what actually happens in the Real Universe. I think it is important for you to realize this because you are on the record (above) seeking input about exactly this.

I mentioned Ripley in Aliens needed the strength of She Hulk not because of rapid decompression. The ship she was on had artificial gravity. The queen alien grabbed Ripley with her tail. The airlock slowly opened.

OH I was thinking of the final scene in Alien for some reason.

The scene you relate unrealistically portrays events and you have included it as an example, except for the strength, of something that fits the standard of verisimilitude you are after. The point of the analysis is to establish what standard you are prepared to accept. Your explanation cements in place that the standard in question is very low indeed.

A) Do the occupants in an airlock exposed to outer space experience weightlessness?

OR

B) Are you only exposed to weightlessness outside the confines of the artificial gravity?

The matter is not addressed in the film is it - the logic of the scene appears to be that the artificial gravity is not "switched on" inside the large airlock during the action. Whatever, it was the inertia and drag that were the issues rather than weight.

This isn't a direct analogous situation but similar enough. In reference to being untethered in outer space.

I have over a decade experience working in a integrated steel mill. You can become dangerously comfortable working around molten metal. But soon as SHTF you're reminded the danger is always present. I'll try and paint a description for those unfamiliar with the steel industry. The BOP making a HEAT at night would be similar to watching a volcano erupt at night. Impressive and lethal all at once.

I would be more dangerous next to the molten steele than next to an erupting volcano (depending on the volcano and the mill of course)

This might be a copout or a layman's perspective concerning FTL. If you believe in GOD with no further explanation simply that HE/SHE exists. Then how much of a stretch is FTL with no extensive explanation.

I have run an RPG where FTL space-travel used gods ... the jump-drive worked by the priest/engineer making the right kind of blood sacrifice over the engines at the right time.

Even with that sort of thing - I still had to deal with the consequences of having FTL in the story.
What happens to causality? If FTL is commonplace, then why isn't time-travel commonplace as well? Stuff like that may not get explained on-screen, but the writer having thought about it will show. IF I don't want characters to wonder about these things, then why not? The answers I come up with to these questions will flavor the story I am telling.

Having used a bit of technobabble you are faced with having to keep things consistent with it later, like if you have to write a sequal. In Star Trek, the Redshirt may worry that the big-boys keep inverting the polarity of the tachyon flux to the primary shield array and saving the day after his mates got killed. He would legitimately wonder why they don't just fly around with the tachyon flux polarity inverted all the time.

... and if the redshirts don't wonder about it, the audience will wonder why they are not wondering. OTOH: but show a short scene where prospective crew are given IQ/Personality tests with results like: "You are thick but obedient and unquestioning - welcome aboard, here's your red shirt... NEXT!" then everything is explained.Anyway - you are the one setting the standard for verisimilitude here. If you are really happy just having stuff work "just because" then what are you having this conversation for?