Hey! Sorry to bother you, I have a question.
Let's assume that there exist universe A which is infinite in size (High 3-A). We know that there exist other universes beyond it, which are either unknown in size or of finite size.
You can travel from Universe A to the other universes through spacetravel (no portals, no wormhole, nothing), meaning that per our standards, they wouldn't qualify as "separate universes" and every universe would just be "occupying an area of space".
My question is as follows. Is it possible that, without accounting for a 4th dimension acting as a separating entity, there exist "distinct universes" in the same 3D space when one of the universes is explicitly infinite? Because, to me, it would mean that Universe A is, out of necessity, encompassing all of them.