AI coders are carrying half-open laptops through airports, offices, and ice rinks Geoff Chan keeps his laptop open after his daughters' skating practices. Geoff Chan AI fans are walking around with their laptops ajar to keep their coding agents running. Techies told Business Insider stories of walking with a cracked-open laptop through airports, offices, and high school hallways. "I think people think I'm whatever the equivalent of an iPad kid is for a middle-aged woman," one AI user said. Geoff Chan sees the parents staring at him. The 39-year-old head of product at Raven.AI is a Claude Code and OpenAI Codex power user. He also has two daughters, ages 12 and 10, who love to ice skate. So, when he takes them to their weekly skating practices, he sits outside the rink and codes with AI. It's easy to lose track of time with these tools, he told Business Insider. Soon enough, the girls' practice has ended, and the parents flood into the changing room.…