The second challenge turned this insight inward, to the experience of being a self. We explored how the self is itself a perception, another variety of controlled hallucination. From experiences of personal identity and continuity over time, all the way down to the inchoate sense of simply being a living body, these pieces-of-selfhood all depend on the same delicate dance between inside-out perceptual prediction and outside-in prediction error, though now much of this dance takes place within the confines of the body.
