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Determined

Determined

A Science of Life without Free Will
by Robert M. Sapolsky 2023 528 pages
4.24
4k+ ratings
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Key Takeaways

1. Free will is an illusion: We are products of biology and environment

We are nothing more or less than the cumulative biological and environmental luck, over which we had no control, that has brought us to any moment.

Determinism reigns. Our actions, thoughts, and decisions are the result of a seamless chain of prior causes, stretching from the immediate past to the dawn of time. This includes our genes, prenatal environment, childhood experiences, cultural influences, and immediate circumstances.

No room for free will. The idea of a "self" separate from our biology and making free decisions is incompatible with our scientific understanding. Even our strongest convictions and most difficult choices are ultimately shaped by factors beyond our control.

  • Key influencing factors:
    • Genetics
    • Prenatal and early childhood environment
    • Cultural and societal norms
    • Immediate circumstances (e.g., stress, hunger, fatigue)
    • Neurochemistry and brain structure

2. Neurological studies challenge the notion of conscious decision-making

Neurons don't become causeless causes that defy gravity and help generate free will just because they're interacting with lots of other neurons.

The Libet experiments. Studies show that brain activity associated with a decision occurs before we become consciously aware of making that decision. This suggests our conscious experience of choosing is more of an after-the-fact rationalization than the cause of our actions.

Neural determinism. Even complex decision-making can be traced to deterministic processes in the brain. The firing of neurons and the release of neurotransmitters follow predictable patterns based on prior states and inputs.

  • Challenges to free will from neuroscience:
    • Readiness potentials preceding conscious awareness
    • Predictive brain imaging studies
    • Influence of unconscious biases on decision-making
    • Effects of brain lesions and stimulation on behavior

3. Emergence and chaos don't provide room for free will

A system being unpredictable doesn't mean that it is enchanted, and magical explanations for things aren't really explanations.

Emergence doesn't equal freedom. While complex systems can exhibit emergent properties that aren't predictable from their components, this doesn't introduce true randomness or free will. Emergent behaviors are still the result of deterministic interactions at lower levels.

Chaos is deterministic. Chaotic systems are sensitive to initial conditions and can be unpredictable in practice, but they still follow deterministic rules. Unpredictability doesn't equate to freedom of choice.

  • Misconceptions about emergence and chaos:
    • Confusing unpredictability with indeterminism
    • Assuming higher-level phenomena are free from lower-level constraints
    • Thinking chaos introduces true randomness

4. Quantum indeterminacy doesn't rescue free will

If you base your notion of being a free, willful agent on randomness, you got problems.

Quantum effects don't scale up. While quantum mechanics introduces true indeterminacy at the subatomic level, these effects are unlikely to influence brain function in a meaningful way. The brain is too "warm, wet, and noisy" for quantum coherence to be maintained.

Randomness isn't freedom. Even if quantum indeterminacy did influence our decisions, this would introduce randomness, not free will. A decision based on random quantum fluctuations is no more "free" than one determined by classical physics.

  • Problems with quantum free will theories:
    • Lack of evidence for quantum effects in neural function
    • Decoherence in warm biological systems
    • Confusing indeterminism with free choice
    • Inability to explain consistent personality and decision-making

5. Change happens, but not through free choice

We don't change our minds. Our minds, which are the end products of all the biological moments that came before, are changed by circumstances around us.

Deterministic change. People and their behaviors do change over time, but this change is the result of new inputs and experiences altering neural pathways, not a freely choosing self deciding to be different.

Biological basis of learning. Even seemingly voluntary changes, like developing new habits or overcoming addictions, can be traced to deterministic processes in the brain. The mechanisms of neuroplasticity and learning follow predictable patterns based on environmental inputs and reinforcement.

  • Factors influencing change:
    • New experiences and information
    • Changes in environment or circumstances
    • Neuroplasticity and synaptic rewiring
    • Alterations in brain chemistry (e.g., medication, hormones)
    • Social influences and cultural shifts

6. Historical shifts show we can move beyond blame

We've done it; we now think differently than people did in the past.

Evolving understanding. Throughout history, we've shifted our views on the causes of various conditions and behaviors. For example, epilepsy was once seen as demonic possession but is now understood as a neurological disorder.

Reducing stigma and blame. As we've gained scientific understanding of conditions like schizophrenia and autism, we've moved away from blaming individuals or their families and towards more compassionate, evidence-based approaches.

  • Examples of historical shifts in understanding:
    • Epilepsy: From demonic possession to neurological disorder
    • Schizophrenia: From "schizophrenogenic mothers" to biological illness
    • Autism: From "refrigerator mothers" to neurodevelopmental condition
    • PTSD: From "cowardice" to recognized mental health condition

7. Rejecting free will doesn't mean abandoning responsibility

Someone who has a seizure in the sort of circumstance described would have their license suspended until they have been seizure free for an average of six months.

Pragmatic approach. Rejecting the notion of free will and moral desert doesn't mean we can't take practical steps to prevent harm and promote wellbeing. We can still hold people accountable in ways that serve social goals without relying on notions of ultimate moral responsibility.

Focus on consequences. Instead of punishment for its own sake, we can focus on rehabilitation, deterrence, and protecting society. This approach is more in line with our scientific understanding and can lead to better outcomes.

  • Alternatives to retributive justice:
    • Rehabilitation programs
    • Restorative justice approaches
    • Preventive measures (e.g., suspending licenses for medical conditions)
    • Education and social interventions to address root causes of harmful behavior

8. Rethinking justice: From retribution to prevention and rehabilitation

If there's no free will, there is no reform that can give retributive punishment even a whiff of moral good.

Beyond retribution. If we accept that free will is an illusion, the entire concept of retributive punishment loses its moral foundation. We can't justify making someone suffer simply because they "deserve" it for their freely chosen actions.

Paradigm shift needed. Our justice system needs to move away from notions of blame and punishment towards a more scientific, consequentialist approach focused on reducing harm and promoting social good.

  • Key elements of a reformed justice system:
    • Focus on prevention and rehabilitation
    • Address root causes of criminal behavior (e.g., poverty, mental health, addiction)
    • Use of restorative justice practices where appropriate
    • Emphasis on public safety and harm reduction rather than retribution
    • Evidence-based interventions tailored to individual cases

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Review Summary

4.24 out of 5
Average of 4k+ ratings from Goodreads and Amazon.

Determined explores the concept of free will, arguing that human behavior is predetermined by biology, environment, and experiences. Sapolsky's writing is engaging and thought-provoking, though some readers find his arguments unconvincing or overly deterministic. The book challenges conventional notions of personal responsibility and moral accountability, suggesting a more compassionate approach to criminal justice. While many praise Sapolsky's insights and scientific explanations, others criticize his dismissal of free will as semantics or find his conclusions unsettling. Overall, the book sparks intense debate about human agency and its implications for society.

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About the Author

Robert Morris Sapolsky is a distinguished neuroendocrinology researcher and author renowned for his work in biology and neuroscience. As a professor at Stanford University, he teaches biology, neurology, and neurological sciences, with a courtesy appointment in neurosurgery. Sapolsky's research extends beyond academia, as he is also associated with the National Museums of Kenya. His expertise in molecular biology, neuroscience, and human behavior has made him a respected voice in the scientific community. Sapolsky's ability to make complex scientific concepts accessible to a broader audience has contributed to his popularity as an author, with his books exploring the intricate relationships between biology, environment, and human behavior.

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