Fable just found a 15-30% memory efficiency improvement in Turbopack / Next.js, nearly autonomously. @tobi asked me today: what have been your “holy s***” moments with AI? My answer was: it’s every single week. And it’s accelerating. In fact, “WTFs/day” might just be my favorite metric for AI progress. It’s one thing to read benchmarks or stories online. It’s another to watch these machines pull engineering feats every day. 3 days ago? Sol helped us find novel vulnerabilities in some of…