MWI is more than one theory, because everything is more than one thing.
There is an approach based on coherent superpositions, and a version based on decoherence. These are incompatible opposites.
How simple a version of MWI is, depends on how it deals with all the issues, including the basis problem.
MWI is more than one theory, because everything is more than one thing.
There is an approach based on coherent superpositions, and a version based on decoherence. These are incompatible opposites.
How simple a version of MWI is, depends on how it deals with all the issues, including the basis problem.