I’m curious about qualia. If you assume that there’s a collection of neurons somewhere (in V1 I suppose) which fire when you see something red, then they would have a 1-1 correspondence to the sensation of redness - see a red car, imagine a red unicorn, listen to someone spell out the letters “R-E-D” and those same neurons should fire every time. So “experiencing the sensation of redness in any way” would then be a synonym for “this specific group of neurons is active”. If that’s the case, then it seems to me that there’s no real depth to qualia : “redness” in all its forms is just the label we adopt to denote that those neurons are active. It seems such a simple argument that I suspect I’ve missed something in the definition of qualia : can someone enlighten me ?