But why is "your experience of the world" tied to your current physical body? I think that the brain is just a machine that creates the illusion of a consciousn

But why is "your experience of the world" tied to your current physical body? I think that the brain is just a machine that creates the illusion of a consciousness. If you turn the machine off, copy the all the data into new hardware, and turn it back on, it will start back where it left off, and the "you" inside won't know the difference. You might not even notice it happened