The existence of parallel worlds that many people find uncomfortable is not its assumption but the result of vigorous logical deductions
The existence of decoherent worlds is pretty hard to deduce from the SWE alone -- one pure state evolves into another. And a pure state doesn’t decompose into a set of objective worlds without a preferred basis .
The existence of decoherent worlds is pretty hard to deduce from the SWE alone -- one pure state evolves into another. And a pure state doesn’t decompose into a set of objective worlds without a preferred basis .
I think you are right. Preferred basis is another problem.