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The Mom Test
Chapter 5 · 1.5 min · 5 of 7

Commitment and Advancement

A chapter summary from The Mom Test by Rob Fitzpatrick.

Chapter 5 introduces the most action-oriented framework in the book: every customer conversation should end with either commitment or advancement, not with hopeful niceness.

— From The Mom Test by Rob Fitzpatrick

Chapter 5 introduces the most action-oriented framework in the book: every customer conversation should end with either commitment or advancement, not with hopeful niceness. Commitment means the customer gives up something of value — time, money, reputation, a specific introduction — to demonstrate that they are actually interested in solving the problem. Advancement means the relationship moves to a next concrete step that brings you closer to commitment. Anything that doesn't produce either is what Fitzpatrick calls a "zombie lead" — looks alive, generates no momentum, decays into wasted founder time.

The currencies of commitment have a hierarchy. Money is the strongest signal — someone who pre-orders, deposits, or pays for a pilot is unambiguously committing. Time is next — someone who agrees to a multi-session implementation, a structured trial, or a long-form interview is committing meaningful resources. Reputation is third — someone who introduces you to their boss, vouches for you in their organization, or publicly endorses the project. Anything below those — "great idea, send me an update when you launch" — is not commitment. It is conversational politeness pretending to be a relationship.

The chapter is full of specific scripts for converting vague enthusiasm into concrete commitment. After a positive conversation, the founder should ask for the next step: "Would you be willing to walk me through your current process for one hour next week?" "Can you introduce me to your operations lead by Friday?" "Would you put down a $500 deposit to hold a spot in the pilot?" Each of these tests whether the enthusiasm was real. A customer who genuinely needs the solution will say yes to at least one. A customer who was being polite will deflect, hedge, or simply not respond, which is information almost as valuable as a yes.

Fitzpatrick frames the entire customer-development process as a funnel of commitments. The first commitment might be 30 minutes of structured interview time. The second might be access to colleagues for further interviews. The third might be a pilot subscription. The fourth might be paid-in-full enterprise license. Each level filters out customers who were only ever performing enthusiasm. The founder who instruments their customer development as a commitment funnel learns within weeks which prospects are real and which are zombies; the founder who measures by "number of positive conversations" learns the same thing only after a year of building. The chapter is the book's most practical: scripts, sequences, and the steady discipline of always asking what the customer is willing to do next, not just what they think.

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Finding Conversations
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