Before you commit months of engineering, make the customer prove the bet is worth taking.

The 72 Hour Build Bet is a self-paced digital ebook for early-stage founders who need a clear decision about whether to build, revise, narrow, or withhold engineering effort.

In three days, you will turn a broad product idea into one precise demand question, separate founder conviction from customer evidence, identify the customer actions that demonstrate costly desire, and define the minimum evidence required before development begins.

The ebook is organized into five focused chapters: The Build Bet, Conviction Is Not Evidence, What Would Make a Customer Act?, A Threshold You Can Defend, and The Decision on Paper.

Each chapter produces a practical part of your final Build Bet Brief, including the Build Bet Definition, Belief-to-Evidence Sort, Customer Commitment Test, and Build Threshold Rule.

Finish with a dated, documented decision you can review without relying on compliments, vanity metrics, personal conviction, or founder mood. Digital access is delivered online instantly so you can read and apply the framework independently.