Google cofounder Sergey Brin said he was ‘spiraling’ before returning to work on Gemini—and staying retired ‘would’ve been a big mistake’

Google co-founder Sergey Brin returned from retirement to work on Gemini AI, believing that staying retired would have been a mistake. He previously planned to study physics in cafés after stepping back in 2019, but was drawn back to actively contribute to AI development.