A multiverse? A single universe with a sort of multiplicity? Do the fundamental laws of physics still hold? Is there still an underlying order? In this video, Dr. Stephen Barr provides some parameters to help understand ideas behind the possibility of a multiverse.
According to Dr. Barr, most physicists believe that deep down there are a set of fundamental laws that govern the whole universe, whether it's a multiverse or not. However, some philosophers and others may entertain the supposition that there are other universes with completely different governing laws of physics. Listen to Dr. Barr's thoughts on this speculation in the video below.
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