Karpathy recently posted his . RLVR. Jagged intelligence. Vibe coding. Claude Code. Awesome coverage of what changed. Here's what didn't change. I did NLP research from 2015-2019. MIT CSAIL. Georgia Tech. HMMs, Viterbi, n-gram smoothing, kernel methods for dialectal variation. By 2020 it felt obsolete. I left research thinking my technical foundation was a sunk cost. Something to not mention in in

