AI made you dumber overnight. Anthropic tested 52 developers. Half used AI, half coded manually. AI users finished faster but scored 30% lower on comprehension tests. They couldn't debug their own code written minutes ago. The gap? Hand-coders treated AI like a teacher, not a replacement. We outsourced hunting and survived. But if we outsource thinking—who catches AI when it's wrong? This study changes everything about how we should use AI tools. Follow for AI research that actually matters. | V