After one interruption at work, it takes the average person about 23 minutes to get back to what they were doing. Software engineers now get interrupted by their own AI all day long, and Anthropic just shipped a Claude Code update that's basically built around that number. The 23 minutes comes from Gloria Mark at UC Irvine, who shadowed office workers and timed every task switch down to the second. Most people wandered through a couple of other tasks before they found their way back to the…