What is the fundamental premise of "positive thinking" The only quantifiable effect of positive or negative thinking that I can think of would be how each mindset influences your actual behavior. But do positive thinkers believe that it also somehow produces effects via some unknown mechanism (or even magic?)? When I say positive thinking I mean in the common way its understood by most people (pop psychology or whatever). what do you think? Also, if it is magical thinking, then wouldnt this be a contender for that james randi million dollar prize or however much it is he offers?