Descartes’ famous phrase “I think, therefore I am” (cogito, ergo sum) has been the subject of immense discussion in modern and contemporary philosophy. Is it an inference or a performance (Hintikka)?

Recently, an AI startup called Cluely announced the launch of its new app with the terrifying tagline: “Today is the start of a world where you never have to think again.” I say terrifying, because if ...