While free-will is an incredibly difficult (perhaps impossible) position to prove... I find it very interesting that it is equally impossible to live a life devoid of seemingly volitional decisions. And while many deny the existence of free will with their words, they still think and behave as though they are responsible for their actions. Perhaps free will is of the epiphenominalist sort. Even then, when one refrains entirely from making decisions they become paralyzed. As you sit at your computer and read this, and contemplate posting a reply, you should realize that even if free will is just an illusion, it is the most pervasive and unavoidable illusion you have ever encountered.