This'll keep you up at night....

the speed of light is not an actual speed, but the distance it takes light to travel in a year...go to a planatarium and they'll tell you something about a super nova, and there was a big explosion of a solar system or star...and how we can't see it yet because the light hasn't reached our viewing, so we're still seeing the star - but in a thousand years, we'll witness the explosion that happened 2 thousand years ago...so here's my deep thought...if there's another planet in another light system in a galaxy far far away - and they're zoomed in on the planet earth, at such a close rate they could see details on the planet, will they think us primitive still driving around in cars as they watch me attend my first day of kindergarten 3000 years from now?