Anil Seth is Professor of Cognitive and Computational Neuroscience at the University of Sussex, where he directs the Sussex Centre for Consciousness Science, and Co-Director of CIFAR’s Program on Brain, Mind, and Consciousness. He is the author of Being You: A New Science of Consciousness and winner of the 2025 Berggruen Prize Essay Competition for “The Mythology of Conscious AI.” His work examines how the brain constructs conscious experience, including his account of perception as a “controlled hallucination” grounded in biological survival.

Visual summary of operating lessons from Anil Seth.

Part 1: The Real Problem of Consciousness

  1. On The Real Problem: The "real problem" is "how to account for the various properties of consciousness in terms of biological mechanisms; without pretending it doesn't exist… and without worrying too much about explaining its existence in the first place." — Reference: Aeon, Anil Seth, "The real problem" (2016).
  2. On Phenomenological Mapping: Tackling the real problem means distinguishing aspects of consciousness and mapping their phenomenological properties onto underlying biological mechanisms. — Reference: Aeon, Anil Seth, "The real problem" (2016).
  3. On Dissolving the Mystery: As with life, where the initial sense of mystery "has largely dissolved" as biologists explained its properties, explaining consciousness piece by piece may do the same. — Reference: Aeon, Anil Seth, "The real problem" (2016).

Part 2: Controlled Hallucination

  1. On Reality: "We’re all hallucinating all the time; when we agree about our hallucinations, that’s what we call 'reality'." — Source: TED
  2. On The Prediction Machine: "Imagine being a brain. You're locked inside a bony skull, trying to figure what's out there in the world." Perception has to be "a process of informed guesswork." — Reference: TED, Anil Seth, "Your brain hallucinates your conscious reality" (2017).
  3. On Sensory Constraints: Normal perception is "a controlled hallucination in which the brain's predictions are being reined in by sensory information from the world." — Reference: TED, Anil Seth, "Your brain hallucinates your conscious reality" (2017).
  4. On Colors and Sounds: "The brain doesn't hear sound or see light. What we perceive is its best guess of what's out there in the world." — Reference: TED, Anil Seth, "Your brain hallucinates your conscious reality" (2017).

Part 3: The Construction of Self

  1. On The Self as a Process: "Your experience of being a self, the specific experience of being you, is also a controlled hallucination generated by the brain." — Reference: TED, Anil Seth, "Your brain hallucinates your conscious reality" (2017).
  2. On the Many Selves: The self is not one thing. There are bodily, perspectival, volitional, narrative and social selves, and the narrative self is where "the 'I' comes in." — Reference: Aeon, Anil Seth, "The real problem" (2016).
  3. On Embodiment: At the most basic level is the bodily self, "the experience of being a body and of having a particular body." — Reference: Aeon, Anil Seth, "The real problem" (2016).

Part 4: The Beast Machine and Interoception

  1. On Biological Roots: "You don't have to be smart to suffer, but you probably do have to be alive." — Reference: TED, Anil Seth, "Your brain hallucinates your conscious reality" (2017).
  2. On Interoception: Interoception, the sensing of signals from inside the body such as heartbeat, blood pressure and gastric tension, underpins the experience of embodied selfhood. — Reference: Aeon, Anil Seth, "The real problem" (2016).
  3. On The Flesh and Blood: "We are biological, flesh-and-blood animals whose conscious experiences are shaped at all levels by the biological mechanisms that keep us alive." — Reference: TED, Anil Seth, "Your brain hallucinates your conscious reality" (2017).
  4. On The Beast Machine: "We are conscious selves because we too are beast machines – self-sustaining flesh-bags that care about their own persistence." — Reference: Aeon, Anil Seth, "The real problem" (2016).

Part 5: Artificial Intelligence and Machine Consciousness

  1. On Silicon Constraints: Being you "cannot be reduced to or uploaded to a software program running on a robot, however smart or sophisticated… Just making computers smarter is not going to make them sentient." — Reference: TED, Anil Seth, "Your brain hallucinates your conscious reality" (2017).
  2. On intelligence versus consciousness: "Just because they go together in us doesn't mean that they go together in general. Intelligence and consciousness are different things." Intelligence is mainly about doing; consciousness is about being. — Reference: Anil Seth, "The Mythology of Conscious AI" (Noema, 2026; Berggruen Prize essay)
  3. On the biases behind conscious AI: Three baked-in biases drive the bundling of intelligence and consciousness: anthropocentrism, human exceptionalism and anthropomorphism—"the tendency to project humanlike qualities onto nonhuman things based on what may be only superficial similarities." — Reference: Anil Seth, "The Mythology of Conscious AI" (Noema, 2026; Berggruen Prize essay)
  4. On a hidden assumption: That the right computation is sufficient for consciousness—computational functionalism—"is so deeply ingrained that it can be difficult to recognize it as an assumption at all. But that is what it is." — Reference: Anil Seth, "The Mythology of Conscious AI" (Noema, 2026; Berggruen Prize essay)
  5. On simulation: "Simulation is not instantiation": computational simulations lack the causal powers of what they simulate: "A simulation of a rainstorm does not make anything actually wet." — Reference: Anil Seth, "The Mythology of Conscious AI" (Noema, 2026; Berggruen Prize essay)
  6. On illusions of machine minds: "Illusions of artificial consciousness might be as impenetrable to our minds as some visual illusions"—even if we know an AI is not conscious, we may be unable to stop feeling that it is. — Reference: Anil Seth, "The Mythology of Conscious AI" (Noema, 2026; Berggruen Prize essay)
  7. On underestimating ourselves: "If we sell ourselves too cheaply to our machine creations, we overestimate them, and we underestimate ourselves." — Reference: Anil Seth, "The Mythology of Conscious AI" (Noema, 2026; Berggruen Prize essay)

Part 6: Animal Minds and the Diversity of Consciousness

  1. On The Human Center: Human consciousness "is just a tiny region in a vast space of possible consciousnesses." — Reference: TED, Anil Seth, "Your brain hallucinates your conscious reality" (2017).

Part 7: Free Will and Agency

  1. On Voluntary Action: The volitional self involves "experiences of intention and of agency – of urges to do this or that, and of being the causes of things that happen." — Reference: Aeon, Anil Seth, "The real problem" (2016).

Part 8: Science, Philosophy, and Anesthesia

  1. On General Anesthesia: Waking from anesthesia is unlike waking from sleep: "I simply wasn't there. It was total oblivion." — Reference: TED, Anil Seth, "Your brain hallucinates your conscious reality" (2017).
  2. On Measuring Complexity: Measuring how compressible the brain's electrical "echoes" are is a first step toward a "consciousness-meter," already used to track awareness across sleep, anaesthesia and brain injury. — Reference: Aeon, Anil Seth, "The real problem" (2016).