Nvidia’s boss dismisses fears that AI has hit a wall

WHEN SAM ALTMAN, boss of OpenAI, posted a gnomic tweet this month saying “There isn’t any wall,” his followers on X, a social-media website, had a blast. “Trump will construct it,” stated one. “No paywall for ChatGPT?” quipped one other. It has since morphed from an in-joke amongst nerds right into a critical enterprise matter.