If octopuses are conscious but our common ancestor wasn't, functionalism gains real evidence

JoshPurtell · x · 2026-10-06

In a debate on consciousness, the author argues that a world where humans are conscious, octopuses possibly so, but their common ancestor not, is prima facie evidence that consciousness can be produced in many ways—so algorithmic functionalism must be taken seriously. He stays broadly agnostic on which human brain features are necessary preconditions, while strongly believing other humans and vertebrates are conscious.

Related event: Octopus Consciousness Sparks Debate on Functionalism(2 posts)→

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