Assuming free will is the ability to choose and does exist. I had a dream that I was a machine, that everthing I did was a response to a stimuli...kinda like that movie Awakenings where the patient aren't capable of initiating an action on their own but can only respond to external stimuli and have 1 set response, such as someone throws a ball at them and they catch it. It was a scary dream, but offers a view of what free will may be. Imagine that everything we do is some complex response gradually developed over time to respond to simple or complex stimuli in our environment and you start to see what I mean. On the other hand close your eyes for a few seconds and shut out all those external stimuli and you'll start to daydream, the mind can't just stop, it's got to have something to respond to, but where do those daydreams come from? How is it the mind knows just what to conjure up to distract us, get us to think, or get us to respond to? Try to think of nothing for more than 5 min, I'll bet you can't. Where does it come from, I suppose it could be the orgin of free will a kind of mechanism that keeps the gears turning, but should one always respond to stimuli without first observing them and becoming aware wouldn't that make them an animal? Isn't that one of the things that really seperates humans from animals is our ability to be aware or self-aware of cause effect patterns and choose what we do? So if possible how would increase their ability to choose? Assuming it is a good thing.