Does free will exist?
In order to have free will one must be able to control the brain which means one must be able to control the particles, their behavior and trajectory with their mind. Do we have this power?
Well let's look at the evidence. I ask myself what am I and I return a response. I am a 3-dimensional object in the shape of a human which is my body. Now in order for my brain to make this statement that I am the body the body must have holistic control over the parts of the body in particular the brain.
For if I'm the whole of the body and I did not have holistic control over the parts I could never make the statement that there is something that covers the body that is the whole of the body and it be anything more than accident. This holistic control is the will and though I think it's determined in one sense it seems to be that the whole is free to will whatever it wants to will provided it is within the capacities of the body to do so.
So yes there is a will and it seems pretty much free.