But the fact is that you are able to come to this logical deduction.
And after that's happened, I become aware that I've come to that logical deduction.
If this deduction is derived from your subconscious brain activity before you are aware of it, it is not a deduction, but an inevitable uncontrollable reaction with no personal control.
Those two are not mutually exclusive - if I programme a computer to make logical deductions and it does so, that's deduction without 'personal control'. Our brains are no different.
I am not just starting to get it.
Evidently.
I reached the conclusion many years ago that our conscious freedom can't be derived from endless mechanistic chains of cause and effect.
So you went in with the preconception of free will, and realised that it wasn't mechanistically viable - you're right, but you've then inferred away from the evidence and towards your preconception. The evidence is that the evidence is, and if it doesn't support your preconception then that's grounds for questioning your preconception. When, logically, your preconception is also fundamentally self-contradictory, I don't see any way that you can cleave to it.
I could have held up my hands and declared that it is just an illusion, but I have moved on to discover the hidden depth and power of the human soul. Or conversely, you are living proof of God's miraculous power.
Which is faith-based declaration of 'I don't like the answer, so I'm going to pretend that it didn't happen'. The science is in, consciousness lags being brain activity - our sense of self control is illusory.
O.