The mere possibility of zombies is enough to refute physicalism about the mind. The anti-physicalist, however, cannot simply start with the possibility of zombies as a premise without begging the question against physicalism. How can we assess whether zombies are possible on impartial grounds?
Despite initial plausibility, physicalism about consciousness is a controversial view. It has come under heavy attack from two unlikely opponents in an academic debate, namely ghosts and zombies.
What makes the brain really special is not its complicated function. It is what may deserve to be called our biggest scientific surprise: the brain’s performing these various functions is accompanied by an amazing “inner movie”.