I was thinking the other day, and a thought struck me;For the sake of argument, What if i built a mirror in space, 10 Light years away, and i built a large telescope to view the aforementioned mirror. If i was to look at the telescope 20 years later, would i see myself 20 years ago? If not, how come?
Just a quick disclaimer I’m not a scientist, i don’t have any degrees or qualifications or anything of the sort. I’m just a rather curious person.