Free Will
The brain begins a decision before you feel you chose. So who actually chose?
You reach for a glass without planning it, and if asked you would say "I decided to drink." But in several famous experiments, signs of the decision appeared in the brain before the moment the person felt they were choosing. As if the decision had already been rolling inside, and the "I chose" arrived late, to sign off on what had already happened.
Level 2 The explanation▾
The experiments (Libet and after) are solid, but their interpretation is contested. Some read them as showing choice is an illusion; others argue they measure the start of a process, not the deciding moment, and that a "veto" remains. What is measurable: there is preceding brain activity. What is open: what it says about "choice."
Philosophy offers a distinction: even if every state is fixed by the one before it, "freedom" may not be the absence of cause but the ability to act on your own values and reasons. This is the compatibilist position, and it too is contested.
Level 3 Deeper▾
Tradition placed choice at the center: "All is foreseen, yet freedom is given" (Avot 3). An ancient phrasing of exactly that tension — foreknowledge versus freedom — without resolving it, holding both ends at once.
The limit. The experiments do not settle the question of free will, either way. They shrink the naive picture of "a self sitting inside pressing buttons," without putting a closed picture in its place.
What is known
Brain activity preceding the conscious report of a decision is measurable (Libet and others).
What is open
Whether this denies choice, shrinks it, or only maps the start of the process.
Off limits
That the experiments "proved" there is no free will — the interpretation is contested.
Level 4 Sources▾
- Libet, B. (1983). The readiness-potential experiments and the timing of conscious decision.
- The compatibilism debate — freedom as acting on your values, even in a causal world.
- Mishnah Avot 3:19: "All is foreseen, yet freedom is given" — for precise verification.