At 11 this morning, I wanted to both debug an issue and take a meeting before lunch. Before AI, I would have had to just start debugging after lunch, there wouldn't have been enough time to do both. But now I had Claude debug the issue concurrently with the meeting. Its answer didn't actually make sense (I still do think I'm smarter than Claude, although the gap is narrowing!), but it showed enough of its work that I could make a good guess about what was really going on, and when I asked it to check my hypothesis I got back from lunch with some debug logs that confirmed I'd found the bug.