Uhh.. Sorry to be "that" guy, but this "theory" has no basis in modern physics, and is not at all taken seriously by any physicist worth their salt. Only place you hear this term is in pop-science literature and the click bait articles that try to "explain" incredibly complicated phenomena in your coffee break, and reading that perhaps makes their readers feel smart about themselves, but there's simply no substitute to understanding physics than going through the standard literature yourself. 

Back to the topic,  take a look at this blog :

http://motls.blogspot.in/2017/05/pbs-hypes-tyson-and-his-simulation.html

it explains these things far better than what I could possibly do in a comment