Anthropic will make its stock market debut as soon as November in an IPO that could catapult the AI startup to a record-obliterating valuation of more than $2 trillion. In a prospectus read and first reported Monday by Reuters, the company warned that the technology it’s racing to build could pose a “catastrophic or existential risk to humanity.” In grandiose language that’s become typical of Silicon Valley during the AI boom, Anthropic reportedly said in