Speaker

Michael Pollan

Michael Pollan

American journalist and author, for many years a writer for The New York Times Magazine and The New Yorker, and the first Lewis K. Chan Arts Lecturer at Harvard University. Pollan is best known for The Omnivore’s Dilemma and How to Change Your Mind; his 2026 book A World Appears: A Journey Into Consciousness turns from food and psychedelics to the philosophy of mind.

Pollan came to consciousness through a psychedelic experience in his own garden in which his plants appeared conscious and returned his gaze. Rather than dismiss it as a drug artefact, he spent five years investigating the science and philosophy of consciousness, starting from the weirdest case (plants) and building up a ziggurat — plants, feelings, thoughts, the self — each a complexification of sentience.

Core positions

Sentience is not consciousness. Sentience — awareness of environment, the ability to distinguish good from bad changes and respond intelligently — is widely distributed across life, in bacteria and plants. Consciousness involves more: interiority, a quality to experience, reportability. Plants are sentient on the evidence (they learn, remember, hear, respond to anesthetics); whether they are conscious is a harder question Pollan leaves open, inclined to doubt.

Feelings, not thought, are the foundation of consciousness. Following Antonio Damasio, Pollan argues that consciousness begins with homeostatic feelings — hunger, warmth, itch — processed in the brainstem, not with thought in the cortex. If so, every vertebrate is a candidate for consciousness, and the Cartesian, neocortical tradition has been looking in the wrong place. The corollary for AI is that computation alone is unlikely to generate consciousness, because feeling may depend on vulnerability and embodiment.

Physicalism may be the error of our age. No one has shown how experience emerges from brain states; “emergence” is a handwave. The evidence fits a brain-as-receiver (transmission) theory as well as a brain-generates-consciousness theory. Pollan left his journey with idealism, panpsychism, and transmission theories no longer sounding crazy, and with physicalism looking like a metaphysics that has been confused for science.

Consciousness is a practice, not only a problem. Pollan ends A World Appears arguing that we could be more conscious than we are, and that we squander the gift of interiority on social media and chatbots. Animals may be more conscious than us because they cannot afford to check out.

In the wiki