Free will is not acausality. It’s goal‑referenced causality (agency) viewed from the inside as the lived experience of choosing, and from the outside as causality that’is often hidden and not generally predictable at a given observer’s resolution.
Essay 5 of 5. The previous four provide scaffolding for this.
Two philosophers meet at an academic conference. “So,” says the first, “do you believe in free will?” “Yes,” says the second. “I feel like I have no choice. How about you?” “No, I choose not to.”
Years ago I read a philosophy textbook that disposed of free will in four tidy sentences: “Either actions have causes or they do not. If they have causes, they are determined, and there is no free will. If they have no causes, they are random, and there is no free will. Either way, free will cannot exist.”
Correct premises. Wrong conclusion.
If your definition of something we all manifestly experience on a daily basis makes it a logical impossibility, the rational response is not to declare the thing nonexistent — it’s to notice that you’ve defined it badly. Imagine running the same argument about sunlight: “You know light is just an illusion, right? There’s really no such thing as light, there’s just vibrations of the electromagnetic field that stimulate the photosensitive neurons in your retina, generating electrical signals that blah blah blah…” The sun, unbothered, continues to shine, and you, unbothered, continue to soak up its rays. So let us define free will as something coherent, and then see whether it’s a concept that earns its keep. (TLDR: It does.)
First, the vocabulary this series installed, in one breath: determinism — single-valued evolution; causality — information propagating forward in time; information conservation — akin to energy conservation; predictability — encoded-in-principle does not mean forecastable, even in principle; agency — goal-referenced causality: model, goal, goal-referenced model updating.
With those pieces in place, “free will” no longer needs to mean magic inputs from outside the universe. Here are five principles for cleaning up the debate.
1) Refuse the impossible demands
Most arguments against free will begin by quietly defining it as something that can’t exist, then declaring victory. Three demands to refuse:
2) Keep the two lenses separate
“Choice” comes apart into two orthogonal lenses, and neither needs to reduce to the other for both to be legitimate: