The build phase is where illusions are dismantled. Your Minimum Viable Product (MVP) is not about perfection—it is about learning velocity.
An MVP that doesn't reach customers is not an MVP—it's a prototype. The goal is to expose your assumptions to real-world friction as quickly as possible.
Product-Market Fit (PMF) is not a moment—it is a signal. Customers return. They refer. They resist leaving.
Are users engaging repeatedly without being prompted?
Is retention improving with each iteration?
Are customers solving real problems using your product?
Transitioning from building features to serving demand that is pulling your product forward.
