Nature 2026-05-07-2
How much of the scientific literature is generated by AI?
Three independent studies converge on the same finding: 30% of peer reviews at Organization Science, 1 in 8 top-tier biomedical papers, and 43% of arXiv CS review preprints now contain AI-generated text. The verifier and the verified are using the same tool. This is the fourth domain in 30 days where verification has emerged as the binding constraint on AI-era knowledge work, after enterprise dev, frontier math, and frontier physics. The investable thesis is no longer single-domain. The next moat in scientific publishing is detection-vendor integration; pre-2026 literature becomes a scarcity asset; mid-tier journals collapse.