Concern over an AI-induced doomsday scenario has dimmed the outlook for US tech stocks. OpenAI CEO Sam Altman delayed the company's IPO, calling it an "ill-advised moment" to go public amid existential risks. Meanwhile, US borrowing costs surged, with the 10-year yield hitting its highest level since 2007 at 5.04 percent.

Could rising debt markets undermine the AI boom? Financial Times columnist Katie Martin and commentator Robert Armstrong host a live Q&A on Thursday, September 24, from 1pm to 2pm BST. Readers can submit questions in advance or during the discussion. This session is part of a weekly text-based expert series.

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