Book 89 of 100 · pushes back

Determined: A Science of Life Without Free Will

Robert M. Sapolsky · 2023

“You did not choose to read this. Read it anyway, but know — you didn't choose that either.”

Resonance Score

DimensionScore
Awareness9/10
Courage1/10
Persistence2/10
Total12/30

Counter-A: Determinism

Why this book matters

Sapolsky is one of the most cited neuroendocrinologists alive, a MacArthur Fellow, and a Stanford professor whose previous book, Behave (2017), is regarded as the most comprehensive synthesis of the biology of human behavior published in the last 20 years. Determined is the book where he completes the argument Behave set up: that human behavior is fully determined by genes, hormones, environment, and history, and that there is no remaining space in which "free will" can meaningfully operate. It became an instant New York Times bestseller in 2023, was reviewed prominently in the Wall Street Journal, Science, and The Guardian, and has reignited a debate philosophers thought had stalled. It is the most rigorous contemporary case against the foundational premise of frameworks like AwaCourage.

Where this book pushes back

If Sapolsky is right, AwaCourage's foundational move — perceive clearly, then choose to act — is incoherent. There is no chooser. The "you" that AwaCourage addresses, the agent that is supposed to see the gap and step across it, is on Sapolsky's view a useful fiction. What feels like choice is the inevitable output of prior causes: genetic, hormonal, developmental, environmental, cultural, all the way back. Persistence, in this frame, is not "your" achievement; it is what your biology and circumstances were always going to produce. Calling it your achievement is the error Sapolsky's book exists to correct.

This is the most direct philosophical challenge to AwaCourage in this entire library. AwaCourage's response, weaker than the framework's bolder readings, is that even if the metaphysics of free will is contested, the phenomenology of awareness, courage, and persistence remains operative. Humans act as if they can choose; the practice produces real outcomes; and the practice is what AwaCourage describes. This is a strategic retreat to an "as if" framing, and a careful reader will notice the retreat. Sapolsky's argument is not so much refuted as sidestepped.

There is a deeper question my response does not answer. If the agent who "chooses" is a fiction, then a phenomenology built on that fiction may not retain normative force. Acting as if I can choose, when in fact I cannot, is not the same as acting freely. It is acting under a useful illusion. Whether a useful illusion can sustain a moral practice across a lifetime is a question Sapolsky's argument leaves open and AwaCourage does not resolve. I work as if it can. I cannot prove that the working changes anything that was not already going to happen. A reader who finds this insufficient is reading carefully, and I have no further answer to offer.

The strongest version of its argument

The strongest case for Determined is this: every neuroscientific finding of the last fifty years points in one direction. The unconscious decisional processes Libet measured. The hormone variations that predict aggression and impulse control. The childhood adversity correlations that predict adult behavior with disturbing accuracy. The genetic loadings that explain large fractions of variance in personality. Sapolsky's argument is not philosophical hand-waving; it is the cumulative weight of an empirical literature that nobody has successfully challenged. Compatibilists — philosophers who argue that determinism and free will can coexist — answer Sapolsky by redefining "free will" so narrowly that, as Sapolsky shows, the redefinitions describe a phenomenon almost no ordinary person means by the term.

If a reader accepts the empirical findings Sapolsky catalogs, the burden of proof shifts. It is no longer "prove free will doesn't exist" but "show the mechanism by which it operates within a fully causal physical system." The philosophical literature has not met that burden. AwaCourage does not attempt to meet it.

Read alongside

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Notes

Determined is the strongest individual challenge to the AwaCourage premise in this library. It is included as a counter-example not because it is wrong but because the framework cannot be defended without engaging with this book seriously.

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