Someones criticism of a movie is that "the time travel isn't realistic enough!"

>Someones criticism of a movie is that "the time travel isn't realistic enough!"

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>someone is a Simpsons fan
>they think their opinion matters

i laff evertim

I don't understand time machines. How do they work? How can you enter an exact date in and the machine takes you literally to that date? How does it know?

The only legit criticism is when it breaks the rules it pre establishes

Theoretically it would use current date and place as the starting point and just work back from there. It wouldn't know because it's a machine.

I think the complaint is probably that the fictional time travel isn't logically coherent but you're too stupid to parse that from their words

I just hate how they always say they can't change the past yet the butterfly effect would disagree.

Assuming it's possible to quantify time and alter it the same way we can alter properties of mass, temperature etc its pretty trivial. But we cant quantify time like that.

Time Travel is the shittiest plot device. Prove me right.

Mainly because time doesn't actually exist. It's just what humans use in order to explain the movement of atoms.

For time travel to be real that would mean that literally every single atom in the universe would have to be moved back to the same position it was at that exact time - which is impossible.

Now, in a multi-verse theory MAYBE you could alter another universe's present which would be similar to your universe's past but it wouldn't affect your universe, and in order to see how it would affect the new universe you'd have to wait it out

>my interpretation is fact
No.

In Legacy of Kain everyone's lives are already predetermined so when there is time travel there's not going to be any weird paradoxes since it was meant to happen like that.

>it takes time travel to make time travel

I don't know how to prove you right but I agree. Haven't seen a single good movie involving time travel

uh, time is most definitely real and quantifiable. It can be dilated and contracted, and two atoms moving at different speeds experience time differently

Time machines are the softest sci-fi there is. Any explanation you try to come up with boils down to "it's magic, I ain't gotta explain shit."

Explain how that proves time exists and it's not just a term we use in order to explain the difference in atom position

>It can be dilated and contracted

The fuck does that even mean? no technobabble please.

IN ENGLISH DOC

space.com/17661-theory-general-relativity.html

>DUDE THIS ISN'T HOW THAT COMIC BOOK CHARACTER SHOULD ACT

>When the time machines arent ufos

No links. Explain in your own words faggot.

True. The worst offender is fucking Looper whose scriptwriter thought that glossing it over is equal to dealing with it.

>Someones criticism of a porno is that "the butt plug isn't large enough!"

i.4cdn.org/gif/1494014931144.webm

Looper was an unexplained shit all around and just introduced a bunch of magic bullshit as "science" just to drive the plot forward
>dude time travel
>dude psychic powers for some reason

If something is moving really, really fast, then time moves more slowly for it than for things that aren't moving really, really fast.

For example, if you got on a space shit and rocketed off to a nearby star at half the speed of light, it might seem as though only 12 months passed for you, but for someone else, your trip may have taken thousands of years, and if they look inside your spaceship, time would appear to be moving extremely slowly.

Depends on the movie.

Some don't explain how the time travel works at all, like 12 Monkeys

Even the ones that do explain gloss over a lot of it though, which is fair, because time travel is almost certainly not possible.

For example, how can a vehicle traveling at 88mph time jump? Why that speed? What's so special about that?

Too dumb for time travel here. Can someone please explain to me how it isn't already proven that time travel isn't possible? If people from the future could actually travel in time, wouldn't they already have come back to our time?

And don't give me that shit about using time travel "wisely", that never works in movies, much less in real life.

>For example, how can a vehicle traveling at 88mph time jump? Why that speed? What's so special about that?
Because that's the speed you need to engage the flux capacitors. Did you even watch the movie

I remember trying to explain how forward time travel is possible to /lit/ because it was part of a story idea I had. I ended up spending 3 hours and linking about 10 different websites and they still wouldn't buy it.

I kind of assumed people realized gravity and speed alter how quickly time passes. I don't actually even know much about it, but it was something I learned about when I was 8

>If people from the future could actually travel in time, wouldn't they already have come back to our time?

>implying "aliens" aren't actually evolved humans from the future

You first have to understand what time is: It's what humans use in order to give a name to the movement of atoms. So this mean that every single instance of time is like a "snap shot" where all the atoms in the entire universe are in one place.

Therefor, for time travel to be possible, you'd have to find someway for all of those atoms to move back to that snapshot, which would require an infinite amount of energy

or future selves have established that it is tech that has to be used sparingly due to the nature of fucking up everything if you divulge the truth. who knows we could be living in an altered time where hitler actually won the war and everyone was living in harmony but a select few survivors wanted a different world so they developed the tech to go back in time, change it to their liking and never tell another soul.

That's nice but I don't see how you can apply that to going to situations from the past.

woah you sure are smart user. I'm sure /lit/ was not trolling you and you BTFO them!

Time is not just a construct like that. It is literally a dimension of the physical universe that can be manipulated by velocity and gravity.

Only in the forward direction.

>Time is not just a construct like that

You're overreaching.

I think I admitted in my post that I'm not smart. It was actually something people had trouble wrapping their heads around because it's actually pretty strange

That only works when you're talking about time dilation - which only work for going to the future. When people think time travel they think going to the past, or going to the future, but then returning to the present (going to the past) which is impossible

this

this is only one specific definition/understanding of time travel
for example, to travel backwards via a wormhole would remove all these criticisms
if one invents a method to create their own wormhole, then they can travel backwards without worrying about that issue

time travel is such a far out concept, so poorly understood, that saying "it can never happen because X" is stupid as fuck

>for example, to travel backwards via a wormhole would remove all these criticisms
You mean something which is a complete theory, constantly challenged on whether it's real or not, and we have absolutely no idea on how it actually works? Might as well just say "space magic"

OK, then why is 88mph so special to the Flux capacitors? Why couldn't Doc make it work at, say, 20mph?

These are of course low hanging fruit, but that's kind of the point in making. With time travel movies you always have to have a leap in logic, which is fine by the way.

I love time travel as a sci fi concept. The modern world interacting with the past is an inherently cool concept to me, especially if the movie does it "right" by showing how subtle actions in the past can severely alter the present time line.

>to travel backwards via a wormhole
That literally only exists in scifi. Most scientists who don't dismiss wormholes claim that they can be used to travel from one point of the universe to another instantly, which is not time travel it's teleportation.

Any FTL travel is time travel. Warp drives are a theoretical possibility and when we get the energy to make one then time travel is possible.

>He actually bought into the "wormholes=time travel" meme

We actually know wormholes exist at a subatomic level. The fabric of time is imperfect. I know that's not the kind of thing we could travel through but just saying

>FTL
The faster something gets, the heavier it gets, so if you're going "FTL" you're going to have an infinite weight, which will increase the work the engines would have to do infinitely.
Also, theoretically speaking you'd only be able to go forward, and anybody traveling FTL would go on a trip and come back and everybody they knew would be a lot older.

>Warp drives are a theoretical possibility
>theoretically

Exactly, it's a theory, one of many. And there's a bunch more theories that state FTL isn't possible, because light speed is the fastest speed observed in the universe.

>inB4 Tachyons

Backwards time travel is actually possible, but only inside an event horizon.

>pretending we can talk about time travel as if it isn't basically magic
it's theoretically possible, as a concept it's interesting
if you're getting triggered by it, the problem isn't the film...

Contemporary physics views space and time necessarily linked, "spacetime", such that to travel instantaneously to another place in the universe would have so many problematic elements if you tried to claim you could only do it in the 'present' (think of time dilation along with the way that time isn't entirely objective as quantum mechanics has recently proven)

MFW any movie where you change the past with time travel, unless it's played as "you were always meant to go back in time and do X"

Time travel movies with broken internal logic are shitty and poorly written, though.

>Backwards time travel is actually possible, but only inside an event horizon.
I'm gonna need a source on that, even though I know it's a moot point (if possible) because if you're in a event horizon you're dead anyways.

>quoting theoretical physics, literal pseudo science, as fact

youtu.be/KePNhUJ2reI

[citation needed]

A black hole is way more likely to crush you into the size of a grain of salt than send you time traveling.

>half the speed of light,

Are we even capable of moving that fast?

>such that to travel instantaneously to another place in the universe would have so many problematic elements if you tried to claim you could only do it in the 'present' (think of time dilation along with the way that time isn't entirely objective as quantum mechanics has recently proven)

None of that still explains how BACKWARDS time travel is possible, which is the only time travel movies use.

>YouTube
>CBS
>Sponsored by Crunchyroll

>unless it's played as "you were always meant to go back in time and do X"

This is even fucking worse.

What the fuck is "meant to". How did the loop start? it's fucking retarded.

>How did the loop start?
God

This is why I had to just turn my brain off to watch 12 Monkeys (series). Everything is explained as:
>it takes time travel to make time travel
>chicken and egg existed at same time
>all of this makes sense and we're cool with this

Everyone here feels like a moron for trying to honestly discuss time travel on Sup Forums right? I certainly do.

Only if you're a brainlet. Just because you don't understand something doesn't mean the people in this thread don't (to the best of science) and support their claims with scientific articles

If I decide to travel into the future, is the future already there, or is it specifally created because I'm going there?

>It's retarded

All time theories are "retarded" if you look it like you, because time travel as we see it in movies just isn't possible. Paradoxes like that are among many that make it unlikely.

If you went back and fucked your Grandmother by accident, and she ended up getting knocked up with your mom, then how the fuck did you even exist to go back in the first place?

Paradoxes aren't bad writing, they're more like thought experiments designed to show how fragile, or I'm this case how bizarre a time travel scenario could be (if it were possible)

It's "created" because you're going there, but you won't be able to go back to the past.

The only way you can do it isninside an event horizon, but it wont be the same as travelling back in time outside one. Inside, you can traverse time like you could space outside the event horizon, so "backward" or "forward" travel is relative to the perspective of the observer; since time now lacks a sole direction, there is no such thing as a definite past or future.

I was more referring to this being a horrible place to have any kind of serious discussion.

>The only way you can do it isninside an event horizon
Sweet. How do I prevent myself from being crushed to death

provide an instance of the "butterfly effect" having any real meaning outside of a movie

>>We actually know wormholes exist at a subatomic level.

How do we know that and what does it mean?

Be a photon. You can orbit the singularity rather than fall to it.

>something relatively insignificant happens
>it becomes relatively significant as time goes on
That's pretty standard shit.

How do I prevent myself from dying when I become a photon? How to transform into photon and back again?

Get ready for the new season! 3 days of madness!
Day 1 - 4 episodes!
Day 2 - 3 episodes!
Day 3 - Last 3 episodes!

And don't worry! It's already renewed for season 4! We have no idea why SyFy has done this either!

And shit, I have zero fucking clue what's going on with that show.

then I'm sure you'll have no problem providing a pretty standard example ;^)

You cant.

1.21 JIGGAWATTS NIGGA

Better question, even assuming that black holes can make you time travel, how do you control what time you're going to, or where the black hole brings you too?

>It's 1806... but I'm 400 billion lightyears away from Earth

And there's zero evidence that event horizion=time travel in the first place. So by going near the thing you're taking a huge fucking risk that's almost certainly not going to pay off

So if I can't turn myself into a photon, in order to orbit a black hole without dying, so that I can time travel.... how is time travel possible

Fine, just off the top of my head
>George washington is born
>George washington become president
There, went from relatively insignificant event to a relatively significant event

It's not a time machine. What happens is that time and space trade places inside the event horizon. You can traverse time as if it was space, while space flows inexorably foward like time.

It is possible, as long as you're ok with being crushed in a black hole.

I like the show though. Season 2 was kinda rocky but it picked itself up towards the middle. Just realize nothing makes sense and everything is the cause for itself.

The show's going to probably end with a shit-eating grin and Cole winds up being the cause for everything thus infinite loop

that's not a butterfly effect. that's just one fact stated after another won. a butterfly effect would be if you could show his mother giving him tea on a Tuesday rather than Wednesday somehow led to him becoming a military man.

>we have no idea why they've done this either
They need something decent to show when Expanse and Dark Matter are in off season

Then why show it over 3 days instead of 10 weeks?

what if i go back in time and kill my grandfather?
how will i be born to go back in time and kill my grandfather?

Because SciFi realizes that nobody wants to wait 10 weeks for a show in the days of online streaming. They're probably still going to show endless reruns of it the following weeks

Not him, but even what you stated is possible and probably happened.

All the people you meet day in day out make small but real changes to your life. Maybe you'll walk into some bar tomorrow and meet the love of your life, have multiple kids, one of which in turn has a kid who becomes president.

Or maybe you realise at the last moment you left your wallet at home, and none of that happens, thus changing all those possibilities.

It's basically the thought that small tiny changes can totally alter things, and they can. You see it in your own life if you look hard enough. Most major life events have a small trigger that could have easily been changed.

That sounds like romantic nonsense and not scientific at all.

> #
>Not him, but even what you stated is possible and probably happened

What I should have said is "something that minute in detail is possible"

See? If I read that one oversight, I wouldn't look like such a moron. Boom! Butterfly effect

fool dont you know love transcends space and time

>That sounds like romantic nonsense and not scientific at all.

en.m.wikipedia.org/wiki/Chaos_theory

what about anxiety?

Nah that just means you're a loser

>Travel back in time six months
>Dropped into the void of space because the earth moves
>Die