When I was younger I heard about the theory of relativity, and other physics ideas from my uncle. I was pleased, but also kinda depressed when he explained that some believe that life for a human, although far longer than say a fly, is still a lifetime, and in turn is the same length. Why? Because similar thoughts crossed my mind earlier in life long before I read it in some dusty text book
Recently I overheard friends talking about this idea that maybe we all see colors differently. Maybe what in my head is brown, is purple to you. There would be NO way to prove it ever. Again, I once explained that to my mom as a kid and she blew me off saying 'no way.' I mean, i wasnt serious, it was just a 'what if' that popped into my mind that spend too much time thinking of random garbage

But someone beat me to it by a long shot
Other friends I have would like to be born at a different time to know about space, or be there for defining moment in history. A friend of mine would kill to have been born hundreds of years ago when much different things were going on in art. Others for music, history....
Anyways, where and when would the ideal you have been born in? And of course why?