The Mom Test

Metadata

The Book in 3 Sentences

1. Ask about real behavior, not opinions. Past actions reveal truth; future promises don’t.
2. Look for pain and commitment. Compliments are meaningless—money, time, or effort signal real demand.
3. Don’t pitch your idea too early. Stay curious about the problem before defending a solution.

☘️ How the Book Changed Me

• I was in the midst of doing user interviews to discover pain points, which started with fairly loose format. Even though I had experience with interviews and I was aware of the basics of interviews like not bringing in biases, etc. it was nice to be reminded of the basics of user interview.

✍️ My Top 3 Quotes

• People will lie to you if they think it’s what you want to hear.
• Compliments are the fool’s gold of customer validation.
• Anything involving the future is an over-optimistic lie.
• The more you’re talking, the worse the conversation is going.

📒 Summary + Notes

• The Mom Test If you ask, “Would you use this?” people will say yes. Instead, ask about their past behavior, not future opinions.

Bad: “Would you buy this?” Good: “How are you solving this today?”

→ Opinions are useless. Facts about behavior matter.

• Compliments are dangerous. Instead, look for commitment or existing pain.
• Ask About Specifics. Ask:
• Don’t Pitch Too Early; don’t bias the conversation by describing your idea

→ Stay curious, not persuasive.

• Look for Emotional Signals

→ You need painful problems, not interesting ones.

• Validation is when someone:

→ Everything else is politeness.

• You must be willing to kill ideas quickly if data contradicts them.
• Go in with:
• Don’t wait for formal interviews. Have casual conversations in real environments where the problem happens.