Don410

I’m torn. On one hand, it seems pretty obvious that humans can’t be in 2 places at the same time like atoms can. Otherwise, we should observe this in our daily lives without needing a microscope. On the other hand, humans are made of atoms, which are in turn made of subatomic particles. This kind of begs the question of how big an object has to be before quantum rules stop applying.

Wouldn’t the cat be an observer that collapses the system? At least if it’s awake?

In the more optimistic versions of quantum immortality, there are some universes where your body never wears out, and you remain reasonably healthy into old age. In the less optimistic (and honestly probably far more realistic) version of quantum immortality, your body wears out but never actually dies. Basically your life turns into an eternal hell on earth where you keep coming infinitely close to dying without ever actually dying. Is there any scientific law saying that you have to die when your body wears out? I don’t think so. If there’s no scientific law saying you have to die because your body wears out, then there has to be a universe where you survive under MWI. Under MWI, anything with a probability above 0 has to happen.

Hmm. I think the universes would have to split at measurement in order for Many Worlds to work. I guess somebody could argue that different universes can briefly interact, but that would kind of beg the question of exactly when universes split. (Are they really separate universes as long as they can interact?) With that being said, the universes splitting at measurement seems to eliminate any advantage MWI has over Copenhagen. It seems to result in MWI having the same Copenhagen issue of a measurement basically creating reality.

I’m about 99.999% sure that many worlds isn’t true. However, if many worlds seriously is true, isn’t quantum immortality an inevitably? Wouldn’t you always have to perceive yourself as being in a world where you survive the most ridiculously unlikely of events? For hundreds or even thousands of years? There’s no scientific law that you have to die. It’s just that, in a single universe paradigm, the odds will catch up to you after no more than 120 years with about 99.99999% certainty. However, if there are infinitely many universes, wouldn’t there have to be some universe out there where the Buddha is still alive? And wouldn’t that have to be the universe the Buddha experiences, since he can’t perceive his own death?