Right, so this has been bothering my for the past half an hour or so, as you should know, light travels at a certain speed, and so (assuming Extraterestrial life is out there) if an "alien" were to look at earth through a telescope from far enough away, they/it may for example see dinasours roaming the earth, or just an empty planet due to the the fact that the present light being reflected off of earths surface must still travel for a long time through space before it reaches this "Alien" (all normal so far right?)
Now, assuming this alien jumps in his theoretical space ship and begins to fly towards earth at great speed, surely he would be traveling through time? As the alien would be observing the more recent light being reflected from earth and so he would be watching earth go from past to present faster than it really has?
And so I just wrote this all for no reason as I now remember that you (theoretically) can not surpass the speed of light. And so it would take the alien the amount of time to get to earth and see that there are now humans on it as it would between dinosaurs inhabiting the earth and humans developing civilisation. Fuck.
(No I didn't take lsd)