See, I think the process is free will--but as Jive said, my semantics behind it are probably different--so for the last few posts I've been talking past Jive and others (I admit) but I think we agree on a fundamental level, just not on a semantic level of what free will is. As an organism we make novel choices, we set novel goals even outside of reflexive actions. You say you could do this with an AI, but the AI can'tdevelopnovel choices (Even choices it's never seen or learned before, and were not instinctively passed down, IE not shared with other members of your species), your brain can. (I originally just said 'choice' I should have clarified better. Evolutionary AIs, I would say, are coming close to what I would consider it though, since they experiment, and then refine choices to attempt to deal with problems--since no one is controlling them, or adding the choices, they are using their own programming to create new novel choices? Yes. When they can set their own goals that would be free will to me. It's just not as intelligent in its implementation as a human brain.)
The big thing is as you said 'outside of our control'. Who is 'our'. Its making a distinction where there shouldn't be one, as you said, the 'illusion' of self. Like we are some being in a drivers seat within our brain, and the brain is the machine. (Ghost in the Shell). But we know diseases like tumors and depression can fundamental alter someone's thoughts and consciousness; those people can still make decisions and formulate novel choices, indicating that this whole perception that the 'self' is somehow different from the brain is just that--an illusion (Which Harris would say includes free will). But this is all premised off of the experiments which map when people thought they decided something vs when neural activity began for motor function. Indicating your 'brain' made the choice before 'you' did--but is your brain 'different' from you? Your consciousness is just a reflection of your brain (As said, we know consciousness changes with disease, so it changes when the brain is affected)..so the choices your brain makes, are you making choices. (Harris kind of dismisses this with people who are distressed by pathologies, indicating their brain is 'separate', but if being 'unable' to veto actions your brain wishes to take is an argument for free will, then in cases, like Nash, where pyschosis is resisted through will, is a case for free will.)
You are your brain. As I said above, Jive's organ (Heart or Gall Blader) example is a decent argument to this, in that your brain is sending stimulus with no way to alter it; in that case, I agree, its not free will. But the parts of your brain that deal with developing novel concepts do have it, and those parts are not really distinguishable from your consciousness, if those parts are affected by depression, your consciousness will change, a tumor, your consciousness will change--they are one in the same, your consciousness is mere an abstraction of those parts of you. And because those parts can make choices, that for me, is free will. The only 'gray' area here is when you attempt to materialize the illusion of 'self' beyond your brain (IE a soul.)..Which I think is what Harris is poking at.