Leon Ross — MPhil Computational Biology at Cambridge. ML for perturbation biology, drug target discovery, and early-stage startups.https://leonross.me/https://leonross.me/writing/recursion-pharmaceuticals/https://leonross.me/writing/recursion-pharmaceuticals/Recursion bet that massive automated cell imaging plus ML beats hypothesis-driven discovery. The platform is real; the open question is whether it produces differentiated clinical assets faster than the money runs out.Tue, 27 Oct 2026 00:00:00 GMTcompanytechbiodrug-discoveryplatformhttps://leonross.me/writing/gears-perturbation-prediction/https://leonross.me/writing/gears-perturbation-prediction/GEARS uses a gene-relationship graph to predict expression changes for unseen single and two-gene perturbations. The headline numbers are strong, but later benchmarks suggest simple baselines close much of the gap.Tue, 20 Oct 2026 00:00:00 GMTpaperperturbationsingle-cellgraph-neural-networks