Parallel Universe: Fact or Fiction? by Advexon TV A parallel universe, also known as an alternate universe, parallel world, parallel dimension, or alternate reality, is a hypothetical self-contained plane of existence, co-existing with one's own. Like the Many-Worlds theory, string theory demonstrates that parallel universes exist. According to the theory, our own universe is like a bubble that exists alongside similar parallel universes. Unlike the Many-Worlds theory, string theory supposes that these universes can come into contact with one another. OUTLINE: 00:00:00 Introduction to Parallel Universes 00:00:31 Types of Parallel Universes 00:01:07 Recap and Conclusion Thanks for watching Make sure to subscribe and leave a comment below. #paralleluniverses #spacetelescope #space