Time‑aware ancient DNA shows recent selection

A time‑explicit analysis of thousands of ancient genomes dramatically increases detection of selection signals, revealing that selection on existing variants (not just sweeps) was widespread in West Eurasia over the last ~10,000 years. This reframes old assumptions that cultural change has made biological evolution negligible in recent human history. — If correct, the finding recalibrates debates about the genetic basis of behavioral and cognitive differences, the interpretation of polygenic scores, and the ethics and politics of applying ancient‑DNA results to modern populations.