I'm confused as to how this proves anything. Are you suggesting that the only explanation that something with small probability has happened, is that there are many worlds in which this has not happen?
No you don't have to observe other worlds, and you wouldn't be able to "prove" anything to anyone else for all sorts of practical reasons. But you'd know for yourself that there is virtually no chance that MWI is wrong if you survive for 6 hours (21,600 iterations at 50% probably each), and you could go as long as you want to further drive that probability down.
I'm not sure that answers my confusion. Even if I am just proving it to myself, why does the occurrence of a not probable event prove the existence of many worlds?
Not trying to be pedantic here, but you did say, "I think you can prove Many Worlds Interpretation correct for yourself."
Anyway, my point is that, I can't see how to go from "I observed something with small probability happening to me" to the conclusion that "MWI is correct". There is no logical connection between the two statements as far as I can discern.
If MWI is correct, every deadly quantum event in this experiment is a branch in which two different universes exist: one with you, and one without you. Since you can only observe the ones in which you still live, it seems to you that this event stops happening with deadly certainty as soon as you are in the box. When you leave the box, it starts happening again. Repeat as many times as you like, the results are the same. Put someone else in the box, they inevitably die in a few seconds. What is the other possible explanation?
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I'm confused as to how this proves anything. Are you suggesting that the only explanation that something with small probability has happened, is that there are many worlds in which this has not happen?
No you don't have to observe other worlds, and you wouldn't be able to "prove" anything to anyone else for all sorts of practical reasons. But you'd know for yourself that there is virtually no chance that MWI is wrong if you survive for 6 hours (21,600 iterations at 50% probably each), and you could go as long as you want to further drive that probability down.
I'm not sure that answers my confusion. Even if I am just proving it to myself, why does the occurrence of a not probable event prove the existence of many worlds?
All I said is that it’s testable, not that it is proven.
Not trying to be pedantic here, but you did say, "I think you can prove Many Worlds Interpretation correct for yourself."
Anyway, my point is that, I can't see how to go from "I observed something with small probability happening to me" to the conclusion that "MWI is correct". There is no logical connection between the two statements as far as I can discern.
If MWI is correct, every deadly quantum event in this experiment is a branch in which two different universes exist: one with you, and one without you. Since you can only observe the ones in which you still live, it seems to you that this event stops happening with deadly certainty as soon as you are in the box. When you leave the box, it starts happening again. Repeat as many times as you like, the results are the same. Put someone else in the box, they inevitably die in a few seconds. What is the other possible explanation?