alan

We have seen direct evidence when astronauts return from space that their time has passed differently than our own on earth. So when we consider a star is 7 light years from earth and that light took 7 years for us to see the light itself is not 7 years in its own existence. This seems to conflict with e=mc2 considering that c is measured in m/s, but we already know s can vary depending what velocity you are traveling at when you are measuring what a second is. Also if we look at the speed barrier as the speed of light maybe i could see objects break that speed barrier since I am basing speed on my time and not the time the moving object is experiencing.