Interesting research in HBR today about how the productivity boost you can get from AI tools can lead to burnout or general mental exhaustion, something I've noticed in my own work https://simonwillison.net/2026/Feb/9/ai-intensifies-work/
AI Doesn’t Reduce Work—It Intensifies It

Aruna Ranganathan and Xingqi Maggie Ye from Berkeley Haas School of Business report initial findings in the HBR from their April to December 2025 study of 200 employees at a …

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@simon One HN comment on that said "The 10x engineer is going to become the regular engineer, and the 100x engineer is going to become the 10x."