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.