I'm actually somewhat of a materialist, and I don't believe in anything spiritual or religious. If I imagine a cube, then this imaginary item is made of nothingness. The cube undoubtedly exists in some sense, but it is not physical.I suppose you could say that the chemicals in my brain that create the thought "are" the cube, but I wouldn't really agree with that.
Why wouldn't you agree with that? What else is it?
In the same sense, sentience does exist. It may be the result of physical matter, but the thing itself is not really physical. Imagine this scenario.
I create a teleporter. It copies your body atom for atom, then kills you. Then it reassembles you body, atom for atom. Even if it is an exact physical replica of you, YOU have still been killed, and you are dead. They are physically exactly the same, and will act exactly the same, but you will be dead.
Unless you want to say that the teleporter will actually work, and that your sentience will be teleported alive and well in the body made of new atoms. If this were the case, what if the original wasn't killed? Would you experience being in two bodies at once?
Sentience is physical. You can't have sentience without some form of data storage and recall.
You're basing your argument on a hypothetical situation that relies on a technology that may very well be impossible. Try again.
Why would you experience being in two bodies at once? The first one is gone.Oh I see, what you're proposing isn't a teleporter. The first body has no brain function, it's dead. You won't be in two bodies. Even if the first survived you would have two yous only in the sense that you both begin with the same memories. Both brains are separate entities, and the second one of you experiences something the other doesn't, you cease to be the same.
This sort of thing has been studied with identical twins. Raised in separate places, they act in entirely different ways. Their personalities are unique. Personality is the result of biology and memory. Change the memories, change the person.
Let's assume this teleportation system works. All atoms are arranged in the exact places they were before, and all cells are still alive. Your neurons are the same. They have the same connections. They create the same chains and loops. You have the same memories and motor skills. You are you.