Peter Godfrey-Smith, University of Sydney philosopher of science and author of Other Minds, joins Curt Jaimungal's Theories of Everything to argue that rhythmic, large-scale electrical activity in the brain — not point-to-point neural firing — is what's essential to consciousness. It's a speculative theory he says he's still developing, and it cuts directly against substrate-independence.
The consequences for AI are the reason this one is worth your time:
The biological half of the conversation supplies the intuition pump: minds as a graded property rather than a binary one, distributed neural control in cephalopods, and the question of how many selves might exist inside a single octopus.
Anthropic's global-workspace interpretability result was read in some quarters as evidence that Claude has the architecture consciousness theories point at. Godfrey-Smith is a sympathetic but unconvinced reader of that inference, and his rhythm hypothesis is a concrete statement of what he thinks the silicon is missing. Treat all of it as a philosopher's position, not a result.
Sources: YouTube