system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Either the universe continues indefinitely, or it has an edge somewhere, both boggle the mind to imagine, which is correct?
gpt
We may never actually know!

From our position in the universe, there is a distance away from us that is expanding away from us so quickly that no light (and thus no object) could possibly reach Earth.  That distance defines the observable universe, and that is much smaller than the size of the universe itself.

This isn't just a "we can't see past this boundary right now", this is "it is physically impossible to reach this boundary from Earth... ever".  So the takeaway is that it *literally* doesn't matter whether or not the universe is infinite beyond that point, because it will *never* affect us in any way.