I would expect elements of those phenomenon to exist outside of human skulls, and to be manipulable in such a way that instruments could be constructed that use those principles to detect souls in human skulls.

They'd also be empirical in that no other simpler/more-rational explanation exists for the properties they exhibit.

This is plainly obvious. You're incapable of coming up with something like this, because you're a p-zombie. Like those LLMs we read about on this site, you can't imagine anything that hasn't been part of your training corpus. Novel, intelligent ideas are beyond you unless they previously existed and you have been exposed to those already.

Why did you even have to ask your rhetorical question? Your consciousness is an illusion. You can't even properly understand this comment I've written. The manner in which you'll respond to it is perfectly predictable.