The question of whether we can hold people morally responsible if free will is doubtful strikes at the very heart of ethics, justice, and our understanding of the human condition. For centuries, the assumption of free will—the genuine ability to have chosen otherwise—has been the bedrock of moral accountability. Yet, advancements in neuroscience, psychology, and philosophy increasingly challenge this assumption, suggesting our choices may be the product of deterministic chains of cause and effect, from genetics to environment to subconscious neural firings. Despite this profound doubt, society cannot and should not abandon the concept of moral responsibility, though it must fundamentally reshape its application, moving from a framework of pure desert to one focused on practical consequences, character, and social utility.
To claim that doubt about free will entirely eradicates moral responsibility is to embrace a form of moral nihilism that would render our social and legal systems incoherent. Even if a person’s action is determined by prior causes, the action itself—a theft, an act of kindness, a lie—still emanates from their mind and body as an agent in the world. That agency, however constituted, has real effects on others. Therefore, holding someone responsible serves crucial practical functions irrespective of metaphysical debates. It allows society to identify sources of harm, protect the community, incentivize desirable behavior, and maintain the trust and cooperation upon which human societies depend. A world without any ascription of responsibility, where no one is praised or blamed, would be one of paralyzing chaos and profound injustice, where victims have no recourse and harmful behaviors face no corrective response.
However, acknowledging the doubt surrounding free will must profoundly change the nature and purpose of our responsibility practices. The traditional retributive model—the idea that people simply “deserve” punishment or reward based on a libertarian free choice—becomes ethically shaky. If an individual’s harmful action was the inevitable outcome of a causal chain involving abusive upbringing, genetic predisposition, or brain chemistry, then hatred and purely punitive vengeance lose their moral justification. Punishment, in this light, cannot be an end in itself.
Instead, responsibility must be reconceived as forward-looking and consequentialist. We hold people responsible not because they mysteriously transcended causality, but because doing so is a tool to shape future outcomes. This approach encompasses three key elements: protection, rehabilitation, and moral dialogue. We may restrain a dangerous individual to protect others, but the goal becomes rehabilitation, addressing the causal factors that led to the action, be they psychological, social, or neurological. Similarly, we praise virtuous behavior to reinforce it, not because the individual magically conjured goodness from a void, but because recognizing it encourages its repetition and cultivation in others.
Furthermore, moral responsibility persists as a form of social interaction that shapes character. Our practices of holding one another accountable—through blame, praise, apology, and forgiveness—are part of the very causal network that influences future behavior. Telling someone, “You are responsible for this,“ is not merely a metaphysical statement but a demand for engagement, reflection, and change. It treats the individual as a moral agent capable of reason and response, which in turn helps to create that more responsible self. This communicative function is vital, fostering empathy and the internalization of moral norms.
Ultimately, we can and must hold people morally responsible even in the face of doubtful free will, but our justification shifts from a backward-looking assignment of cosmic desert to a forward-looking commitment to human flourishing. It becomes a pragmatic, compassionate, and essential feature of a functional society. We navigate the uncertain terrain of human agency not by denying responsibility, but by infusing it with humility and purpose. We recognize that holding someone accountable is less about judging a mythical, uncaused will and more about participating in the ongoing project of building safer, more just, and more responsive communities, acknowledging that we are all, in some sense, products of circumstances but never beyond the reach of moral influence and the demand to do better.
