I’m not sure what you mean by objectivity or why superimposed states don’t have it.
If a pair of superimposed state differ by a couple of atom positions, they can interact and merge. If they differ by “cat alive” to “cat dead” then there is practically no interaction. The world stays superimposed forever. So that gives causal isolation and permanence.
I mean maybe some of the connotations of “worlds” aren’t quite accurate. Its a reasonably good word to use.
No objectivity means that superpositions can be made to disappear by a suitable choice of basis
If there is no inteerction, they are decoherent states. If you could show that decoherence smoothly follows from coherent superposition, without any additional postulates, you would be on to something .
I’m not sure what you mean by objectivity or why superimposed states don’t have it.
If a pair of superimposed state differ by a couple of atom positions, they can interact and merge. If they differ by “cat alive” to “cat dead” then there is practically no interaction. The world stays superimposed forever. So that gives causal isolation and permanence.
I mean maybe some of the connotations of “worlds” aren’t quite accurate. Its a reasonably good word to use.
No objectivity means that superpositions can be made to disappear by a suitable choice of basis
If there is no inteerction, they are decoherent states. If you could show that decoherence smoothly follows from coherent superposition, without any additional postulates, you would be on to something .