system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: If light moves only through space and not through time, why don't we observe it appearing at its destination instantly?

I recently learned about this concept and am still trying to wrap my brain around it...light is the fastest thing in the universe, and supposedly only travels through space without experiencing time; so how come it appears to us to go so (relative to instant speed) slowly? 8 whole minutes from the sun to the earth, what up with that? And what would it take for something to go so fast we do observe it travelling instantly, or is that impossible? Thanks to anyone who can answer any of these questions!
gpt
The faster you travel the more time slows down for you (or rather the faster the rest of the universe seem to work if you look out the window). But if you travel at the speed of light, your time is so slow that it stands still, meaning that from your perspective you reach your destination instantly. But from an outside observers perspective you are traveling at the speed of light and it might have taken millions of years to reach your destination.