Video · Talk, roughly 30 minutes

David Rusenko: How To Find Product Market Fit

David Rusenko (Weebly co-founder) · Y Combinator (Startup School) Free Beginner

This is a founder-facing YC talk from someone who spent 18 months grinding before Weebly clicked, so it is honest about how long focusing your market actually takes. Rusenko is direct that you find fit by narrowing and iterating on who you serve, not by trying to be everything on day one. A good starting point if you want the shape of the problem before you sit down with a heavier positioning method.

  • Product-market fit for a broad product often takes many iterations and a year or more, so expect to narrow repeatedly.
  • You get there by cutting bad directions fast and doubling down on the users who clearly respond, not by widening your appeal.
  • When focus is right it feels obvious: usage and demand start pulling on their own instead of you pushing.

It answers 3 questions

  1. How do I actually find my beachhead niche when my product is horizontal and could work for almost anyone?
  2. How do I know if I've found product-market fit?
  3. When should I pivot vs. persevere?

Read with it

  1. The single best thing ever written on customer conversations. It teaches you to ask about the customer's life and past... momtestbook.com Book · ~130 pages The Mom Test Rob Fitzpatrick
  2. The essay that put 'product-market fit' into the startup vocabulary. Read it for the gut-level description of what PMF feels... pmarchive.com Essay · ~15 min read The Only Thing That Matters Marc Andreessen
  3. The nuanced counterweight: PMF isn't a single binary moment, it can be lost, and 'market' is doing more work than founders... a16z.com Article · ~20 min read 12 Things About Product-Market Fit Andreessen Horowitz (a16z)
  4. Seibel's whole point is that a market only counts once real customers are grabbing the product as fast as you can make it and... Michael Seibel (Y Combinator) Essay · ~4 min read The Real Product Market Fit Michael Seibel
  5. Turns the vague feeling of product-market fit into a number you can move. Ask users how they would feel if they could no longer... First Round Review Article · ~20 min read How Superhuman Built an Engine to Find Product/Market Fit Rahul Vohra
  6. The free tool for running the how-would-you-feel-without-this survey that underpins the Superhuman method, giving you a... Sean Ellis and GoPractice Tool · Free tool Product/Market Fit Survey Sean Ellis
eChai Partner Brands The partnership →