Time travel - Speed of light

[zobia]

Re: Time travel - Speed of light

@JustARegularGuy

Just interested to hear from the scientists or physcists on the forum (if any), when they think mankind will be able to get close to travelling speed of light?

One of the most interesting implications of travelling at that crazy speed would be the possible ability of time travel. AFAIK, backwards time travel is not possible - travelling at speed of light or not. But interestingly, it might be possible to travel farther into time. I’m no scientist, but I think that’s because passage of time itself slows down as we move farther away from earth (due to gravity). So theoratically, you can have an astronauth blast away from earth at speed of light, return back, and the astronaut would have hardly aged. Meanwhile, decades or hundreds of years may have passed at earth. And I believe this theory ahs been proven scientifcally as they compared a clock on earth vs a clock on a rocket ship taking off from earth. The clock on the rocket ship was found to be lagging behind the clock on earth.

define light to me and i will tell ya when?