Two distinctions that I think are relevant to the NFW debate is the distinction between "metaphysical free will" and "agentic free will" (A.F.W.). If you are an agent that is not constrained by other objects or agents, then you have A.F.W. If you are not in a jail cell, you are not tied up, if no external objects are blocking you, then your agency is not being constrained and you can make decisions that accomplish your goals. The problem with agentic free will is that it is compatible with determinism and a robotic view of agents. Someone with A.F.W. is not necessarily more special than a robot. If a robot is placed in the wild, then that robot also has agentic free will.
Then with metaphysical free will (M.F.W.), one has the ability to be unconstrained by the laws of physics. This is the incoherent version of free will since no decision can be free from the filtration effects that were applied to construct the decision. With no metaphysical free will, we are slaves to the laws of physics. Agentic free will doesn't undo this level of meta-slavery.
When people say they have free will, they usually mean something like "my process of making decisions is more free than a robot's process of making decisions". But the only way this is possible is to find evidence that humans have the ability to intentionally defy the laws of physics that should govern our mental pathways and decisions. The burden of proof is on the believer in M.F.W. to point to which part of the brain or body that is measurably intentionally defying the laws of physics.
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HARD INCOMPATIBLISM
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I subscribe to "hard incompatiblism" - the idea that free will can't exist because free will contradicts both determinism and indeterminism.
"Free" implies "not constrained" which implies "independent of physics" which implies "independent of patterns" which implies "randomness".
"Will" implies "converting desires into actions" which implies "decisions" which implies "filtration algorithms" which implies "non-randomness".
Randomness fundamentally contradicts non-randomness.
Law of non-contradictions: contradictory things can't exist.
Free will can't exist.