Applying the Superhuman Product:Market Fit Eval Engine to Ramblers Way

This document applies the product:market fit engine developed by Rahul Vohra, the CEO of Superhuman, to Ramblers Way

Michael J.J. Tiffany

Background on the Superhuman engine for optimizing product:market fit

In 2018, Superhuman's unique journey to product:market was documented by its founder on First Round Capital’s widely-read blog:

How Superhuman Built an Engine to Find Product/Market Fit | First Round Review⁠

Rahul’s core insight came from

Sean Ellis⁠

, who ran early growth at Dropbox, LogMeIn, and Eventbrite, and who coined the term "growth hacker". Sean had

found⁠

a leading indicator of product:market fit:

Just ask a user “how would you feel if you could no longer use the product?” and measure the percent who answer “very disappointed.”

Ellis turned this into a robust

customer development survey⁠

. Ellis established a magic number and a clear benchmark: 40%. Companies that struggled to find growth almost always had less than 40% of users respond "very disappointed" — whereas companies that grew most easily almost always exceeded that threshold. And therein was the hint that would become core to this method: