Aim at the Right Part of the Cloud: Regression, Baselines, Changing Noise and Quantiles

Deep End Era. Engineering with Sankalp · Oct 28, 2026 · 58m

Femi's strawberry forecast is right to within two percent over a quarter, yet the Riverside store runs out every Saturday and bins fruit every Tuesday. His new colleague Ingrid tells him he does not need a better line. He needs the cloud around it. Part three of The Deep End's Machine Learning series starts with Galton's sweet peas and the phenomenon that gave regression its name, fits a line by ear with nails and springs, and shows why weights mean "holding everything else fixed" and why that is both their power and their trap. We meet Anscombe's quartet, the lasso's habit of cancelling…