Observer Localization in Multiverse Theories

          @misc{ scivideos_PIRSA:18040117,
            doi = {10.48660/18040117},
            url = {https://pirsa.org/18040117},
            author = {Hutter, Marcus},
            keywords = {Quantum Foundations},
            language = {en},
            title = {Observer Localization in Multiverse Theories},
            publisher = {Perimeter Institute for Theoretical Physics},
            year = {2018},
            month = {apr},
            note = {PIRSA:18040117 see, \url{https://scivideos.org/pirsa/18040117}}
          }
          

Abstract

The progression of theories suggested for our world, from ego- to geo- to helio-centric models to universe and multiverse theories and beyond, shows one tendency: The size of the described worlds increases, with humans being expelled from their center to ever more remote and random locations. If pushed too far, a potential theory of everything (TOE) is actually more a theories of nothing (TON). Indeed such theories have already been developed. I show that including observer localization into such theories is necessary and sufficient to avoid this problem. I develop a quantitative recipe to identify TOEs and distinguish them from TONs and theories in-between. This precisely shows what the problem is with some recently suggested universal TOEs.