That isn’t the relationship between decoherence and observation.
Decoherence events are when a quantum system splits into multiple parts that are no longer dynamically accessible to each other. At this point, they are in different worlds.
Observation events have to be decoherence events. Observation has no other role in quantum mechanics other than that in order to observe, you must decohere.
So, whether or not you observe things, you are in some world of dynamically mutually accessible states, and this will evolve into many dynamically inaccessible components with or without your observing it. By the time you’ve observed anything, it’s way too late to get from one to another.
I agree provided the many-worlds interpretation is correct, which seems likely.
If the consciousness-causes-collapse interpretation is correct (which seems less likely), then the special form I described might still work. But I can’t count on it.
That isn’t the relationship between decoherence and observation.
Decoherence events are when a quantum system splits into multiple parts that are no longer dynamically accessible to each other. At this point, they are in different worlds.
Observation events have to be decoherence events. Observation has no other role in quantum mechanics other than that in order to observe, you must decohere.
So, whether or not you observe things, you are in some world of dynamically mutually accessible states, and this will evolve into many dynamically inaccessible components with or without your observing it. By the time you’ve observed anything, it’s way too late to get from one to another.
In that case, it seems like Quantum Immortality doesn’t work.
And here I thought I was safe. Dammit.
Well, the nice form you described here doesn’t work. The kind of lousy usual form does, with the usual caveats.
I agree provided the many-worlds interpretation is correct, which seems likely.
If the consciousness-causes-collapse interpretation is correct (which seems less likely), then the special form I described might still work. But I can’t count on it.