The Giant KoreanThe reason why we never meet time travelers is because our civilization ends before the technology can come to fruition.
lurch (he/him)nah, the reason is: when you travel back in time, our gakaxy, solar system and planet are in different absolute universal positions. so you end up alone in deep space and by the time the planet reaches your position the time you traveled back has passed, making it absolutely useless and life threatening.
This makes me wonder… We just had an eclipse. We knew the position and timing of the celestial dance. We know them way into the future and the past and they’re highly accurate. We know the arcs and paths of other planets and their moons.
Are we accurate enough with our time telling and spatial understanding that someone could, to within a few meters, accurately calculate exactly where in space a specific point on the earth was at a specific time?
What would it take for us to become that accurate?