hard vs. easy vs real problem of consciousness Chalmers vitalism philosophical zombies illuminate adjustment of color perception reality perception/consciousness as controlled hallucination: composing a picture in ones head and verifying/adjusting it by perception bayesian inference: prior, confidence, posterior brains are bayesuan prediction machines deductive, inductive, abductive reasoning veridity emotions as a way to control internal body state free will as illusion of control beast machine theory illusion of person's continuity and permanence through time time as an illustion presented to consciousness