Wei Dai has suggested that the default setting for a decision theory be Tegmark’s Level 4 Multiverse—where all mathematical structures exist in reality. So a “quark—lepton” universe and a string theory universe would both be considered among the possible universes—assuming they are consistent mathematically.
Of course, this makes it difficult to specify the utility function.
Wei Dai has suggested that the default setting for a decision theory be Tegmark’s Level 4 Multiverse—where all mathematical structures exist in reality. So a “quark—lepton” universe and a string theory universe would both be considered among the possible universes—assuming they are consistent mathematically.
Of course, this makes it difficult to specify the utility function.