Michael Pollan on Consciousness: A New Perspective from Plants and Animals to the Brain

Bestselling author Michael Pollan — known for How to Change Your Mind, The Botany of Desire, The Omnivore's Dilemma, and more — joined the Huberman Lab podcast to share his latest thinking on consciousness. The conversation ventured into territory that neuroscience has long avoided, weaving together the inner lives of plants, animals, microbes, and human self-awareness into a series of views that are at once humble and bold.

Why Consciousness Is So Hard to Define

Pollan opened with a frank admission: "We actually know nothing about consciousness — we don't know how the brain's physical matter gives rise to it, or even whether that's really what's happening." That statement set the tone for the entire conversation: stay open, resist premature conclusions.

He reflected on the awkward position of neuroscience. Huberman candidly admitted that as a neurobiologist he was trained to avoid the topic of consciousness altogether, because it was once "the kiss of death for an academic career" — only those who had already achieved great success and won major awards were deemed "entitled" to discuss it.

Pollan drew on a few classic definitions to home in on consciousness. The simplest is "subjective experience" — a toaster has none, and he believes AI doesn't either. Another comes from philosopher Thomas Nagel's famous essay What Is It Like to Be a Bat?: if "being something" genuinely feels like something, then it is conscious.

He further distinguished between sentience and consciousness. Sentience is the more fundamental, baseline capacity — an awareness of one's environment and the ability to register whether changes are good or bad. This may be a universal property of life. Consciousness, by contrast, is the particular way we execute that sentience; every species has its own version.

Thomas Nagel's 1974 paper What Is It Like to Be a Bat? is one of the most cited texts in the history of analytic philosophy of mind. Nagel's central argument is that even if we had complete knowledge of a bat's neurophysiology, we still could not understand from a first-person perspective what echolocation subjectively feels like — and that irreducible subjectivity is the core difficulty of consciousness. The argument directly challenged the physicalism dominant at the time, the view that mental phenomena can be fully explained in terms of physical processes. Philosopher David Chalmers later named this the "Hard Problem of Consciousness," contrasting it with the "Easy Problems" (information integration, attention allocation, and other functional issues) that neuroscience is better equipped to answer. Pollan invokes this framework to remind listeners that scientific methods currently reach only the Easy Problems, while no physical theory has yet fully explained the subjective quality of conscious experience.

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