Romansh:There is a lot evidence for a chemical origin for our consciousness[/i].-The word "origin" is a fast and loose way of putting it. We know that biochemical reactions in neurons produce ions which can carry electrical signals. We know different regions of the brain have different functions. The brain provides for the appearance of consciousness, and no one of us knows whether the brain acts as a producer of consciousness or a receiver. I only see these two possibilities. Do you have a third?