Neurological and informatic models of subjectivity will no doubt have their uses and values, as did mechanistic models of the world before them. Yet, like their mechanistic forebears, these theories are grounded in an insistence that subjectivity is a secondary phenomenon whose explanation resides in something prior. Chalmers wants to insist, along with Descartes and Locke before him, on the primacy of subjective experience or, as the philosopher Bitbol puts it, ‘that consciousness is existentially primary’. Rather than being something that can be ‘described by us in the third person as if we were separated from it’, Bitbol argues that consciousness ‘is what we dwell in and what we live through in the first person’. This feels reminiscent of what the German philosopher Edmund Husserl in 1936 called the ‘life-world’ of conscious experience, and I suspect that it is where we must look to locate the source of our selves. But I also expect that philosophers and scientists will be arguing the point for centuries to come.I feel therefore I am Margaret Wertheim
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Photo: Europa and Jupiter's Great Spot, Voyager 1, March 3, 1979. NASA