Will mankind ever time travel?
and if so for what purpose/profit?
and if so for what purpose/profit?
Donut Tim
Favorite Answer
No.
.
?
We are traveling through time.
If we can get closer to the speed of light, then we can slow down the processes for the travelers, and they'll arrive back 'in the future' quite far, but having barely aged.
In terms of going backwards in time, that is much less likely by any theory or technology we're even close to understanding.
Chances are that if we were ever able to travel back in time, we'd become familiar with someone somewhere who has had an actual encounter with a time traveller, and yet literature is remarkably absent of such things. Except for some relatively modern lunatic fringe types, there's no evidence of visitation from the future -- and we'd have to ask, why not? What would be the purpose in not revealing that such technology will exist in the future? After all, we speculate about and plan for future technologies all the time.
Anonymous
Consider this - If an engine has been made that can travel 99.99% the speed of light - it will take 4 light years to get there - Well thats what we percieve of their journey. For the crew itself it would only be four days since speed and mass are directly proportional to time. The faster the crew goes the more slowly time travels for them.
It would take 80 years for them to leave the edges of our galaxy - which in lightyear terms is into the high thousands.
For sub atomic particles they can go faster than the speed of light - but whether humans can harness the laws that govern sub-atomic particles isnt known yet - but quantum mechanics has revleaved enough so far to atleast make the theory of time travel plausible.
DrDave
You ARE traveling in time as we speak. To travel back in time is an impossibility other than reminiscing over old photos, books, and movies. To travel far into the future some day may be a reality if we can find a method of putting someone to sleep for extended amounts of time however that person can never go back.
Alpha Beta
Technically, the answer to your question is that we do travel through time.
The fact is, some of us do travel at a rate different than others through time. Astronauts and even pilots, flight attendants and anyone who travels at any speed faster than someone else ages a bit slower than other observers.
If we could travel at say half the speed of light, for say a year or two, and then back to Earth, we would indeed return to people who had aged dozens of years compared to us. That said, anyone moving at a faster rate than someone else travels into the future a tiny bit compared to that other person. That's a fact.
Going back in time is not so easy ... and there is a major paradox involved in that you could go back in time and kill your grandfather, which means you would never be born, which means you could have never gone back in time to kill your grandfather.