Episode Summary
Executive Summary: Michael Shermer interviews philosopher Christian List about his book Why Free Will is Real. List argues for “free will emergentism”: humans are intentional agents with alternative possibilities and causal control at the psychological level, even if the physical level is deterministic. He defends higher-level explanations in psychology, law, and social life against reductionist determinism.
Main Topics: Free will as an emergent higher-level phenomenon: List argues that free will is real when understood at the level of intentional agency, not merely microphysics. Human beings should be described as goal-directed agents with beliefs, desires, and actions that cannot be captured fully by fundamental physical description. Critique of hard determinism from Sam Harris and Jerry Coyne: Shermer presses determinist objections that thoughts and intentions are caused by unconscious neural processes. List responds that this confuses the physical implementation of action with the agential level where choice and responsibility operate. Alternative possibilities and compatibilist libertarianism: List argues that free will requires genuine alternative possibilities, yet these can coexist with deterministic physics. His position is a hybrid: libertarian at the agential level, compatibilist at the physical level. Mental causation and interventionist causation: List defends the idea that higher-level mental states such as intentions and goals are real causes because they function as robust control variables in explanations of behavior, better than low-level neural descriptions alone. Neuroscience, readiness potentials, and limits of reduction: The discussion covers Libet-style findings, readiness potentials, and split-brain/primes. List argues these illuminate mechanisms, but do not eliminate the explanatory role of psychology or prove that conscious agency is illusory. Law, punishment, and moral responsibility: The conversation connects free will to criminal justice, responsibility, and rehabilitation. List says his view preserves meaningful distinctions between impaired agents and normal agents, while also allowing critique of crude retributivism. AI, animals, and personhood: Shermer raises dogs, Tesla, Deep Blue, and future AI. List says intentional agency can extend to animals and perhaps advanced AI, but personhood and moral status require additional conditions such as conscious experience.
Key Arguments: Free will should be defined as intentional agency plus alternative possibilities plus causal control; a system lacking agency cannot meaningfully be said to have free will. Describing humans only at the physical level (atoms, neurons, laws of physics) makes free will invisible, just as particle physics cannot see unemployment or universities. Higher-level phenomena can be real and scientifically indispensable even if they supervene on physical processes; they need not be reducible to microphysics. Determinism at a lower level does not rule out indeterminism at a higher level of description, especially in the sciences where abstraction is necessary. Mental states are plausible causes of action because they are the most useful difference-making control variables for explaining behavior. Neuroscience contributes to understanding action, but cannot replace psychology as the main explanatory framework for human choice and responsibility. Readiness-potential findings show neural implementation before conscious awareness, but do not settle the question of agency because subjects can still abort actions and higher-level intentions remain causally relevant. Cases involving tumors or severe life history trauma show that responsibility depends on agential impairment at the relevant level, not on abstract physics. Free will skepticism tends to collapse meaningful distinctions in law and moral assessment, while List’s view preserves them. His position—"compatibilist libertarianism" or "free will emergentism"—aims to reconcile emergent choice with deterministic foundations.
Data Points: Professional philosophers identifying as compatibilists: 59.1% - Shermer cites a survey of professional philosophers on the free will debate. Time since ancient Greeks: 2,500 years - Shermer notes the free will/determinism problem has been debated since antiquity. Town population where List grew up: 3,500 then 4,500 - List describes his German village, Nastetten, and its growth over time. University rank of List's workplace: London School of Economics (LSE) - List explains he is a professor of philosophy and political science at LSE. Charles Whitman victims: 15 killed, 32 wounded - Shermer recounts the Texas Tower shooting in the discussion of brain tumors and responsibility. Whitman tumor size: pecan-sized - Shermer cites the brain tumor found postmortem in Charles Whitman. Age of Danta Page’s grandmother when she gave birth: 14 - Shermer summarizes Adrian Raine’s case study of severe social and developmental adversity. Age of Danta Page’s mother when she gave birth to him: 16 - Part of the same background narrative illustrating extreme developmental risk factors. Age 2 medical incidents for Danta Page: no fewer than 5 emergency room visits - Used to show repeated early head injuries and trauma. Age of the defendant in the orbital frontal cortex tumor case: 44 - Shermer recounts the case of a middle-aged man whose tumor affected sexual behavior.
Pivotal Quotes: "free will is an illusion. Our wills are simply not of our own making." — Sam Harris: Shermer reads Harris’s epigraph and frames the deterministic challenge. "when you view something like free will at the level of agency, at the level of psychology, then free will can be real even if, at some more fundamental physical level, the world is deterministic." — Christian List: List summarizes his emergentist defense of free will. "we can have that, that we do, in fact, have that at the agential level as agents, and that our best scientific theories of Agency does vindicate a picture of human beings as intentional agents with alternative possibilities and causal control over their actions." — Christian List: List explains his compatibilist libertarian position.
Implications: The conversation suggests that debates about free will, responsibility, and punishment depend on the level of explanation we use. It supports preserving psychology and law’s agency-based language while still embracing neuroscience and non-retributive justice reforms.