Exactly, we are not rocks! There is a lot of neuroscience here Sam fans are missing that change the game. Very strange/bold of Sam to completely ignore the mathematical argument of Giulio Tononi, Christof Koch and @LAlbantakis. Read this recent paper:

Erik Hoel & George Ellis' work on causation suggests that mathematically it makes sense to attribute causal power to the higher levels. Have you read this recent paper by Tononi & @LAlbantakis? Completely contradicts the "useful description" stance.

I would suggest reading this recent paper by Giulio Tononi, a neuroscientist and information theorist. The people claiming we don't have free will are unaware of the theories that put free will in entirely mechanistic and mathematical terms.