Many Worlds' Born rule derivations

[Scott Glancy]

I occasionally hear people criticizing the Many Worlds interpretation on the grounds that Many Worlds based derivations of the Born rule are unsatisfactory. I would like to better understand this criticism. If you make this criticism, would you answer the following questions to help me understand this argument?

1. Are all good interpretations required to produce their own derivation of the Born rule?

2. Is there a reason that Many Worlds is particularly required to give a derivation? Why?

3. Why are Many Worlds based derivations unsatisfying? (You might take Wallace's proof in https://arxiv.org/abs/quant-ph/0312157 as an example.)

4. Are there any derivations of Born's rule that you find convincing?

I would be happy to hear any other comments you have about Many Worlds derivations of the Born rule that are not covered by those questions.

I know there are many reasons that people don't like Many Worlds. To keep this thread under control, I would recommend that we confine it to discussion of Many Worlds' Born rule derivations.

Thanks,
Scott