Is the Many-Worlds Interpretation truly deterministic?

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The Many-Worlds Interpretation (MWI) posits that every physically possible scenario occurs in some branch of the multiverse, including highly unlikely events. While David Deutsch supports this view, Max Tegmark emphasizes that absurd scenarios happen with negligible frequency, suggesting that most branches reflect "normal" events. The discussion raises questions about whether there are duplicative universes to ensure normal timelines dominate, but it is argued that the vast number of branches makes counting impractical. The deterministic nature of MWI implies that all conceivable outcomes exist, yet the implications of such absurd scenarios challenge common sense and raise ethical questions. Ultimately, the debate highlights the complexities and contradictions inherent in understanding the multiverse through MWI.
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Well, doesn't this entire debate show, how nonsensical the many-world interpretation (as most other interpretations that go beyond the minimal interpretation) are from a scientific point of view? There may be some people whose mind/consciousness split all the time, particularly those who think "interpretation" is a scientifically relevant topic :nb), but I think that the majority of people, particularly physicists who haven't already lost contact to experiments and observations in the "real world", cannot confirm such experiences with any objective confidence. We do experiments and make observations and always find one outcome (modulo uncertainties of any measurement/observation). There's nothing splitting in branches, and the only thing QT provides are probabilities for the outcome of these unique observations and measurements (unique of course always within the uncertainties any measurement has of course, and most of the experimental work is to provide adequate and objective estimates of statistical and systematic errors!). That's it. There's nothing more concerning "interpretation", and so far there's not a single observation that contradicts this point of view but to the contrary QT is confirmed with an amazing significance.
 
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  • #122
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