I definitely understand what I'm trying to say and what you are posting is telling me that you don't. That may be my fault for not expressing it well enough, or yours, or some combination of both.
It was your wording that said "You can shrink the process and its inputs and outputs down to every tiny change of mind" (#74).
Yes - you can apply the argument and questions to every tiny change of mind.
Again, the process is where you put the free will in.
If it exists, that's where it must be - I'm arguing that it's logically impossible (except for compatibilism).
So it depends on the process in your example.
If this is fix, the free will will be also fix and it's all circular.
There's no circularity to fix. Last time you referred to a post when I was making the argument about rewinding time -
this is a different way of thinking about it.
Let's take it from the top again.
Each time you think something or make a choice, your state of mind changes, so we have the process with two inputs:
Input A: Initial state of mind
Input B: Environment or circumstances.
Process of change.
Output C: New state of mind.
Free will, if it exists, must be manifest in the process of change. Now we can ask the question: given some specific A and B, will there always be just one possible C? If the answer is yes, then minds are deterministic, if the answer is no, then there must be something happening in the process that has nothing to do with the mind or circumstances, so it must be random. Hence the process is either deterministic or contains a random element.
This is based on the principles I outlined before:
- The only things that can cause an event are those that are its logical antecedents.
- Specifically in the case of human choices the only possible antecedents are the previous state of mind and the environment.
- To the extent an event is not caused by something it is caused by nothing.
- Something without a cause must be random.
So unless one (or more) of them is wrong, free will (except for compatibilism) cannot exist.
To bring it back up to the more human level, everything that goes on in your mind has reasons (unless they're random) and when you make a choice you do so because it's what you want to do most (unless you're being forced) and that is not something you can change - it's just what you want most at the time. That want will be that way for many complex reasons but you have no direct control over those reasons because essentially they are an expression of who you are and the circumstances you find yourself in.