Neurochemical Determinism and the Prioritization of Desire

Neurochemical Determinism and the Prioritization of Desire names Voda’s challenge to the idea that meaningful choice must remain untouched by biology. She argues that people’s decisions are already shaped by hormones, genetics, and experience, and proposes that a carefully chosen desire might be strengthened by quieting one that conflicts with it. Jasper’s reaction gives this theory its personal stakes: after an operation has altered his capacity for empathy, he wonders whether the change has erased his agency or brought forward a part of himself he had habitually ignored.

Voda’s Argument About Choice

Voda explains her position to Jasper after they watch Definitely Cheating, a program in which suspicious partners bring camera crews to expose alleged adultery. Jasper is startled by his own outrage at the unfaithful spouses, and by the fact that the accusations prove true in every case. Their conversation moves from that spectacle of betrayal to a broader question: whether fidelity depends on a person’s freely resisting temptation, or whether a commitment could be made more reliable by changing the desires that might undermine it.

Voda imagines an operation that would make a couple faithful to one another, while acknowledging that it is too risky for common use. She anticipates the objection that engineered fidelity would lose its meaning if free will were what made faithfulness valuable. Her counterargument is that people cannot depend on free will alone, and that choosing to become less capable of desiring infidelity might itself express a deeper commitment. The proposal is hypothetical, not a treatment she says she has put into practice.

Removing an Urge, Not Overriding a Person

Jasper asks whether the imagined procedure would make someone physically unable to act on a desire or simply leave them without the desire. Voda rejects the first possibility: preventing people from fulfilling wants they still have would create unhappiness by setting mind against body. In her account, the operation instead removes the urge to be unfaithful, privileging a stated wish for fidelity over a competing impulse.

That distinction is central to Voda’s theory. The procedure does not, as she describes it, force a person to behave against a continuing desire; it changes which desire carries greater weight. Yet the distinction also leaves an ethical tension intact: the person’s priorities would be shaped through surgery, even if the chosen commitment supplied the reason for doing so. Voda treats that intervention as assistance to a declared preference, while the risk of the operation and Jasper’s questions keep the cost of that assistance in view.

Jasper’s Personal Interpretation

The argument matters to Jasper because he had not wanted empathy before Voda’s intervention. He wonders whether her having privileged it means some capacity for empathy must already have existed in him, however faintly. The possibility offers a way to understand the change as more than an alien trait imposed from outside: it may have strengthened an impulse he previously dismissed whenever it arose.

Jasper does not arrive at a settled theory of free will. Rather, Voda’s account helps him contemplate his altered self without treating every new moral inclination as wholly foreign. His tentative image is of a tiny pilot light: a small pre-existing capacity that could become consequential once given priority. The concept therefore links neurochemical intervention to an unresolved question of ownership—whether a changed desire can still feel like one’s own when it amplifies something that was present but neglected.