Where does consciousness come from?
pg: The word "consciousness" doesn't mean one single thing.  To the extent it means anything definite, it seems to refer to a collection of self-referential thoughts.I'm sure everyone who studies the brain wonders very much how neuron firings correlate with these thoughts or any others.  I'm equally sure everyone who studies the brain would be surprised if they weren't "based on nothing more than electrical signals firing off."