@Telamon,
Hi Telamon!
I can't possibly speak for alternate universes or dimensions. Hypothetical question always begin with an 'if'. You are now leading me into a zone of fantasy.
I would adore to explore the realms of other universes with you, maybe on another thread though?
There is one of mine here somewhere: "Does Nowhere exist?".
Thank you Telamon, and have a fantastic everything!
Mark...