What is consciousness? This enduring question stands at the forefront of scientific inquiry, challenging our understanding of the human experience. Our familiarity with consciousness can often hinder its objective study. Science maintains an emphasis on objectivity, presenting a paradox in evaluating a phenomenon that is inherently subjective.

This dilemma is central to Michael Pollan’s compelling new book, The World Appears: A Journey into Consciousness. Pollan, known for transformative works such as The Omnivore’s Dilemma and How to Change Your Mind, delves into the intricacies of consciousness in a manner that is both enlightening and thought-provoking, capturing my interest as a science journalist.

Pollan approaches the topic with a genuine curiosity, grappling with the profound questions surrounding how and why both humans and other organisms experience consciousness. His explorations are as intriguing as the subject itself, and at times, they require deep reflection.

Over a span of five years, Pollan engaged with a variety of disciplines including artificial intelligence, plant biology, Victorian literature, and Buddhist philosophy to understand consciousness better. Managing such a broad scope of topics into a cohesive narrative is no small feat, and Pollan adeptly crafts his book into four chapters, each representing a deeper layer of consciousness.

Pollan’s initial insights stem from personal experiences with magic mushrooms, which led him to perceive the sentience of plants in his garden. His explorations prompted discussions with researchers studying similar phenomena. Noteworthy findings, such as plant roots possessing the ability to solve mazes, offer fascinating insights. While he is not yet convinced that plants have consciousness, he considers them sentient—existing in a realm just shy of awareness.

The second chapter shifts focus to emotions and feelings, presenting an intriguing yet troubling pitfall in understanding consciousness. Pollan introduces a series of scientists working on endowing machines with consciousness, including those programming computers to seek sustenance in a digital habitat. This reduction of consciousness to mere survival instincts raises unsettling questions: Is consciousness merely a byproduct of basic needs? This notion challenges our understanding and sense of wonder, a tension Pollan vividly addresses throughout the text.

The subsequent chapters address thought and self—a territory often neglected by scientists. Pollan wisely turns to philosophers and artists who have contemplated consciousness’ enigmas for much longer. He speculates that consciousness might arise from specific configurations of matter, typical in neural networks. However, this material perspective can undermine the richness and vibrancy inherent in the concept of consciousness.

Pollan ultimately posits that the materialist view of consciousness has reached an impasse. While not all scholars agree, he advocates for exploring ideas that challenge mainstream thinking, proposing that consciousness may not emerge solely from the brain or body but could be woven into the very fabric of reality, similar to fundamental forces like gravity.

Concluding his journey, Pollan acknowledges that he knows less about consciousness than he did at the outset. This sentiment resonates with me, echoing Christoph Koch—a prominent authority on consciousness—who suggests that acknowledging our limitations in understanding may pave the way to new possibilities. Pollan emphasizes that approaching consciousness as a practice, rather than a puzzle, allows us to engage fully with the present moment, a perspective I wholeheartedly support.