As a thought experiment, imagine we were to scan the position of every molecule in the human body to the Heisenberg limit of accuracy. Imagine we were to plug the resulting model in a physics simulation that models every biochemical and physical interaction with perfect fidelity. This is a thought experiment, and what I suggest isn't ruled out by physics, so let's assume it's technologically possible. Would the simulated being be "conscious" in the same way the original human is? Would it experience "qualia"?
If you think the answer might be no, then congratulations, you actually believe in immaterial souls, no matter how materialist or rationalist you otherwise claim to be.
If you think the answer might be no, then congratulations, you actually believe in immaterial souls, no matter how materialist or rationalist you otherwise claim to be.