Every experiment gets exactly two weeks. At the end you choose: kill it, scale it, or iterate. No exceptions.

The Two-Week Rule: decide beforehand what success, failure, and 'promising' each look like. Pre-commitment creates clarity.

Why two weeks? Long enough to get real signal. Short enough to prevent sunk-cost attachment from taking hold.

A team kept running an experiment for six weeks 'to be sure.' The pre-commitment would have revealed the answer at week two.

Pitfall: 'Let's keep trying and see.' Without pre-commitment, every disappointing result becomes a reason to continue forever.

Pre-commitment creates clarity. Set your criteria before you start and the decision at the end makes itself.

A two-week sprint without criteria is just a two-week delay. Today you write your criteria before you start.

Today's practice: take yesterday's experiment or a new one. Write four things before you launch.

Item 1: your hypothesis. Item 2: success criteria — what result means scale. Item 3: kill criteria — what means stop.

Item 4: start date. Not 'soon.' Not 'next week.' An actual date. Put it on your calendar right now.

Commit: complete your sprint card today. A complete sprint card is worth more than the best intention.

A compass built with deep craft shows its quality in every detail. Your judgment deepens with every sprint you complete.