W

Is time travel possible?

7 Answers
Can we as humans ever expect to travel faster than the speed of light, and will this reverse time?
J

No, it won't reverse time. As far as I know, we're stuck in a dimension where time only goes forward. Einstein's equation E=mc^2 says that as an object approaches the speed of light, its mass increases to the point of infinite. Since it will take an infinite amount of energy to propel an object of infinite mass, it looks like speed of light travel is impossible. With that said, if you travel through space at high speed and away from a source of gravity, time slows down for you. It appears the same to you but it's much slower relative to the time on Earth. If you took off into space for a year or two at a speed nearing the speed of light, then turned around and came back, time for you would seem like a year or two, but Earth will have experienced a couple thousand years worth of time.

...
T

If you ask the experts, time travel is not possible in the the foreseeable future, no matter how fast you want to get there..

If you really want to get deep into this subject, its a good idea to read up on things like special relativity and gravitational time dilation where you'll find arguable theories about one-way future time travel. These are only theories and focus on being able to move through time into the future but not the past. According to scientists, the laws of physics as science understands them today would not allow backward time travel.

...
A

The speed of light/energy is the critical fulcrum to time. To time travel physical matter would have to exceed this which is impossible and if it were it would flip the universe on its head. No. There can be no time travel.
I don't pretend to know the nuts and bolts of astrophysics but I did stay at a Holiday Inn express a few times.

...
J

Who knows. With string theory and wormholes there are theories developing that time, space, and the universe can bent. I would think that it may be possible some day. We are just beginning to understand the universe and discover and theorize about wormholes, dark matter, and blackholes.

...
A

I've wondered myself. I think anything is possible. A couple of years ago we never had the internet or computers and wayy back when we didn't have Tvs. But look at what we have now. Laptops, webcams, ipads and HD :D

...
M

That is an interesting question. There are theories that would allow humans to time travel. That would be very cool, and weird at the same time.

...
S

Nothing is impossible. You never know in next hundred years or so man would indeed invent the TIme Machine which has fascinated us for so long.

...