Whether or not parallel universes exist is hard to determine because:
A) our universe is so big.
B) the parallel universes cannot communicate with each other.
C) the other universes do not emit any light.
D) parallel universes destroy each other if they come into contact.

Question

Quizplus · Accepted Answer

The existence of parallel universes is difficult to determine because they cannot communicate with each other. This means that any evidence of their existence or non-existence within our own universe is limited. The size or lack of light emissions in other universes and the idea of them destroying each other do not necessarily impact the difficulty of determining their existence.

Whether or Not Parallel Universes Exist Is Hard to Determine