Is the fact that nobody has come across someone from the future proof that time travel will never be invented?
Title says it all pretty much.
Posted Apr 26, 2012, 3:57 PM UTC
020
You only think you've never met anyone from the future.
2
Exactly, we just need an Observer to mess up.
3
Hear hear.
Or maybe all those people in the mental wards actually aren't crazy...
1
Technically, with the tiny delay between when things actually happen and our brains processing it, everyone you meet is from the past. Even if they came from the future, you're perceiving them nanoseconds in the past from the moment you actually met. :P
2
ooh...
touche...
1
TEMPORAL PRIME DIRECTIVE.
1
No. Some theories state that the time travel "machine" would have to exist at the time in the past you wish to travel to.
1
Only, if time travelers don't have a certain guideline to follow that would keep them from giving out their real identity and what they are doing.
1
It only suggests that we may never be able to go back in time. Several theories, most around relativity, suggest the possibility of going forward in a limited sense.
1
Nope. Maybe it'll be a long time in the future and:
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It takes a lot of energy to go so far back to the past so they don't come here.
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It's impossible to go this far.
1
If time travel is invented in 25 years and a time traveler goes back in time to 1978 then it would be in a parallel version of the prime 1978.
1
Anything is possible in imaginationland
2
What if this is the parallel version?
1
Then a man from the future would no longer be a man from the future. They would be able to predict nothing with certainty any more than you could since the past they know has yet to be made. A man from the future would either be considered insane or eccentric if they chose to reveal that they were form the future.
1
Solution: Go far into the past and have Pulitzer Prize winning pictures taken of you that will end up in history books. Then, when your therapist is giving a lecture and suddenly realizes the picture on the projector from WWI is you, you're all set in the present.
Unfortunately, you'll probably die in an airport, and witness yourself being killed.
1
As soon as you go into the past you created and exist in a new universe and your teacher, who is in universe prime. will not even know anything about what happens in that universe.
1
Well it depends if the time machine actually goes back in time or goes to a parallel universe.
1
There are also the possibilities that time is just a means by which we rationalise going from one point to another. There's also the infinite frame theory, which suggest you can't change time, even if you go back to a point that's already happened and reality splits into another frame, leaving what's happened (happening right now) unchanged.
1
No, because what if we're very careful not to reveal ourselves? I mean themselves, the time travelers, not me, I'm certainly not a time traveler.