Rapidly test and validate any startup idea with the 2-day Foundation Sprint (from the creators of the Design Sprint) | Jake Knapp & John Zeratsky (Character Capital)
Lenny Rachitsky
JULY 13, 2025
Why differentiation is the #1 predictor of startup success (with the 2x2 framework that you can use with your team) 3. The seven “magic lenses” for choosing between multiple product ideas 6. What you’ll learn: 1. The three fundamental questions every founder should answer before writing a line of code 4.
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