Has This Model Ever Seen Tomorrow? Time-Series Forecasting from Holt-Winters to Zillow Offers

Deep End Era. Engineering with Sankalp · Oct 28, 2026 · 57m

The night before a record heatwave, Eastmarch Grid's new deep learning forecaster says the evening peak will be 9.1 gigawatts. Forecasting chief Mariam asks one question: has this model ever seen tomorrow? Part eight of The Deep End's Machine Learning series starts with Yule's pendulum pelted with peas and Bachelier's drunkard's walk, builds exponential smoothing as a navigator's dead reckoning, and tells the story of Spyros Makridakis, who answered his critics by running forty years of forecasting competitions in which simple methods and combinations kept embarrassing sophisticated ones…