4 ms·

I thought MWI is considered an established hypothesis in physics community. I went to Wikipedia and it confirmed my impression. Perhaps I’m missing something.

• Filligree 12y ago
  You're not. The "problems" this article suggests for MWI are actually only problems for people who don't fully understand it. Attempting to count worlds, for example, is a mistake right from the start; perhaps MWI is badly named, but decoherence doesn't produce fully disjoint worlds. They always overlap with their neighbours. For an analogy, trying to count MWI worlds is like trying to measure the length of Norway's coastline. It depends on how you count, but "worlds" also aren't a fundamental building block; it doesn't affect the predictions of the theory.
  • speakeron 12y ago
    Surely the Born rule is a problem for MWI.
    • Filligree 12y ago
      FSVO "problem", sure. There's no ambiguity in using it, but the motivation for its existence is still dubious; it seems like an appendix. That, however, is also true for all other QM interpretations.