Which hypothesis do you mean? The existence of something like a soul? I don't have a hypothesis on that. I'm just not totally convinced that a concept like a soul does not exist on some meta-level.
Yes, I think you can say that the person I was yesterday is a different person than the one I am today or ten seconds ago.
I don't want to die but a copy of myself does not help I think. When my existence ends I don't experience the world anymore. It would be nice to know that someone very similar to me will be there but it does not really prevent me from dying. Transferring me to another (younger) body would be better. But what do we need to transfer and how?
I don't know what you mean by "soul" then, but I can confidently say that the brain is responsible for all human behavior.
If I instantly replaced all the atoms in your brain with different atoms, would you die? Would it still be you? Likewise if I made an exact copy of your brain.
Yes, I think you can say that the person I was yesterday is a different person than the one I am today or ten seconds ago.
I don't want to die but a copy of myself does not help I think. When my existence ends I don't experience the world anymore. It would be nice to know that someone very similar to me will be there but it does not really prevent me from dying. Transferring me to another (younger) body would be better. But what do we need to transfer and how?