Against Many-Worlds Interpretations · HackerPapers discussions

Against Many-Worlds Interpretations — mentioned by n4r9

Tue, 11 Jun 2024 12:45:44 GMT

Indeed, there are various pros and cons to all the leading interpretations. "Parsimonious" is often used to describe Everettian interpreations, although this is somewhat dubious as the leading advocates all have their own slightly different take on MWI (i.e. which quantities are "physical" and how to make experimental predictions - see [0] for more). MWI has always suffered with issues around probability. Why should we assign probabilities to branches, and why do those probabilities coincide with the Born rule. My belief is that it won't be widely accepted until this is resolved. There are…

Paper and discussion history. A mention is not an endorsement.

Against Many-Worlds Interpretations — mentioned by n4r9

Fri, 22 Jan 2016 18:58:36 GMT

Many-Worlds has flaws comparable to many other leading interpretations, which is why it's not a large majority view among quantum information and foundations researchers. Explaining why the observable universe is Born-rule typical is a major issue for Many-Worlds. http://arxiv.org/pdf/gr-qc/9703089.pdf is a good discussion of this issue, which I don't think has yet had a satisfactory rebuttal. A more up to date version is at http://arxiv.org/abs/0905.0624 It's silly to insist that every article about quantum phenomena should refer to any particular interpretation of the mathematics.

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Against Many-Worlds Interpretations — mentioned by millstone

Tue, 04 Nov 2014 06:15:03 GMT

Many Worlds is a far, far more popular interpretation than Bohm[1]. The strong objection to Many Worlds is not that macroscopic objects cannot be in superposition. There are many objections [2], but the principal one is the difficulty of deriving the Born Rule. This is a deep objection. The Born rule predicts of the result of quantum measurements in QM, and it's not clear how to get those results out of MWI. The Born Rule in MWI is inserted ad-hoc afterwards, or arises via some weird "world-counting" formalism that doesn't naturally connect to probabilities. So MWI has more the flavor of a…

Paper and discussion history. A mention is not an endorsement.