Hey ShockwaveRider, thanks for reading 🙂 I agree we tend to overcomplicate things and the simple behaviour of laughing (and getting a joke) already tells us we're conscious and clever. With PDAC I'm just asking a narrower question, when someone is conscious, does the brain's light change in a way we can actually measure? Can we make it science-y, can we see the imprint of our choices and interactions? And maybe, curiously, can these be recalled. I think it's something worth testing with today's cameras. If the answer is NO, then that's worth knowing too.