S1 · L042:26
The Shoe Store With No Shoes
Find your riskiest assumption, test it the cheapest way you can, and decide what success means before the results arrive.
Validation
Glossary
Success criteria
The result you write down before an experiment that decides whether you continue, such as "if twenty percent sign up, we continue". Setting it after you see the data turns validation into hope.
Learn it in a lesson
S2 · L022:09The Button That Raised Millions
Let customers vote with their behaviour: form a hypothesis, test one thing, wait for real numbers, and pair data with talking to people.
Metrics
S2 · L061:58The Glasses That Launched Too Loudly
Launch to the right people, in the right setting, in growing rings: earn quiet proof before you make a loud promise.
Growth