The debate of free will vs. determinism is a) recent hot topic b) has no relevant concern to psychology c) has been waged since the days of the ancient greeks d) can us understand why people just don't change

c) has been waged since the days of the ancient Greeks

Explanation:

The debate of free will and determinism has been fought since the days of the ancient Greeks and arose because of an apparent contradiction between two plausible ideas. The first is the idea that humans are free to do or not to do what they want (obviously, within certain limits - no one believes we can fly just because we want to). This is the idea that human beings have free will - or free will. The second is the idea that everything that happens in this universe is caused or determined by previous events or circumstances. Those who accept this idea are said to believe in the principle of determinism and call them determinists. (Of those who deny this second idea they are said to be indeterminist.)

when you rub, you also apply pressure, that pressure can urge the poop to come out. i think that when your rubbing, you also might be slightly breaking it up and that can further fill the stomach.  

cookies! make chocolate chips, but with orange chocolate!