Basically, you assume things still exist when they pass outside your light cone for the same reason you think your friend still exists when he walks behind a wall. While he might teleport away as soon as he walks behind the wall and then teleport back just before he comes back, it’s much more consistent to believe he just keeps existing unless you have a reason to think otherwise.
Basically, you assume things still exist when they pass outside your light cone for the same reason you think your friend still exists when he walks behind a wall. While he might teleport away as soon as he walks behind the wall and then teleport back just before he comes back, it’s much more consistent to believe he just keeps existing unless you have a reason to think otherwise.
Edit: just noticed username. Deleting posthaste.