Yea dude that's my theory that time is what keeps everything focused on one single now so that energy doesn't leak out to some other now somewhere else

There's nothing outside this one moment, ever.

It all moves together in perfect unison and that's why the speed limit is the speed of light.

Edit: for all these other histories happening outside of the now, they can't change shit about their timelines so they obviously don't have the same freedom of movement we do, do they?