Superhuman's PMF score jumped 22% to 58% in three quarters — NFX breaks down the full engine
richardreis · x · 2026-10-21
NFX's Speed Masterclass Lecture 7 walks through Rahul Vohra's Superhuman product-market fit engine: the Sean Ellis survey score rose from 22% to 58% in three quarters. The lecture covers the six steps — measure PMF score, segment must-have users, define the high-expectation customer, learn why users love you, find what holds them back into a balanced roadmap, then track and repeat — plus practical questions on sample size, survey timing, whether 40% is the finish line, and when to pivot.