system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5 the difference between the concept of time and the concept of spaceTIME.
gpt
Because the originally idea was time AND space were 2 different things.

You change space (tracking an object by a few feet) then time (by sec) moves independently with no influence with each other.

Now, turns out for a cosmic speed limit to exist, space and time needs to influence each other to compensate.