Many-Worlds and Testable Claims

[bzcle316]

Among the most well-known interpretations of Quantum Mechanics is that of the "Many Worlds," in which all possible outcomes of a measured quantum event occur simultaneously in some alternative universe. Now, I realize there is some manner of debate as to whether or not the different interpretations of quantum events are genuine scientific hypotheses, or simply some manner of personal philosophical interpretation, but I was curious about the specifics of this particular claim. Specifically, are there any kind of testable claims that this interpretation of quantum phenomena suggests that would allow scientists to try and determine if this (or any other interpretation) corresponds to physical reality?

 

[PeterDonis]

are there any kind of testable claims that this interpretation of quantum phenomena suggests that would allow scientists to try and determine if this (or any other interpretation) corresponds to physical reality?

No interpretation of QM is testable over and above standard QM itself, because all QM interpretations make the same predictions as standard QM for all experiments. So there is no way to experimentally test one QM interpretation against another. That is why there is still no consensus about QM interpretations a century after QM was developed.