Quote (xz-master @ Oct 10 2011 11:10am)
If I build a big mirror in space, 10 lightyears from earth and I took took a telescope and looked at the mirror, would I see myself 20 years older?
Would possibly be impossible to pull off, but in theory it should work, right?
It would be impossible, the lights ( your vision ) would take too much time to travel , and you'd only see it in couple years. ( returning back if it was possible )
Its like stars, you think they are still there, but some are already dead, but the light that got out of them are still traveling to get to earth, once it will have travelled all the way to earth,
you won't see it anymore. Brophysics right there