The journalist and polymath probes the mysteries of the mind in this unsettling yet life-affirming investigation

The brain, wrote Charles Scott Sherrington, is an “enchanted loom where millions of flashing shuttles weave a dissolving pattern”. The British neuroscientist created this striking image more than 80 years ago, a time when mechanised looms, not computers, embodied the idea of technology. Even so, the symbolism feels relevant. We struggle to talk of our brains or minds without recourse to the machine metaphor: once it was clocks, then looms, and now computers. We say that our brains are hardwired; we talk of our ability to process information.

The quote appears as merely a footnote in Michael Pollan’s new book, A World Appears, a fabulous and mind-expanding exploration of consciousness: how and why we are self-aware. But the whole thing can be read as a lucid and impassioned riposte to Sherrington’s conception of the mind as a machine. In Pollan’s view, we have become imprisoned by such narratives, which have obscured the richness and complexity of human and non-human consciousness. Bridging both science and the humanities, Pollan mines neuroscientific research, philosophy, literature and his own mind, searching for different ways to think about being, and what it feels like.