Lesson 5

Learn before you bind

Turn the riskiest assumption into a small test.

A useful test says what you expect, who or what can disprove it, how much you will risk, and what result changes the decision.

The attractive shortcut

The vague version says to research the market, ask people what they think, or try the idea. Those activities can produce notes and encouragement without answering the decision that matters.

What holds up

Choose one assumption that could sink the next move. Test it with the people, prices, conditions, and behavior that matter. Set the pass, pause, or stop rule before seeing the result so enthusiasm cannot quietly move the goalposts.

Where it breaks

  • The test asks friends whether they like an idea instead of asking likely customers to make a realistic choice.
  • The test changes the product, audience, price, and sales message at the same time.
  • There is no threshold, deadline, cost cap, or record of what actually happened.
  • A positive conversation is counted as a sale, repeat demand, workable margin, or reliable delivery.
  • A weak result is explained away instead of changing the decision or the next test.

Questions worth carrying

  1. Which single assumption could make the next move a bad decision?
  2. Whose real behavior—or which current record—could challenge it?
  3. What result means proceed, revise, pause, or stop?
  4. What is the smallest honest test that fits your time and cash limit?
  5. What will still be unknown even if the test passes?

Fifteen-minute move

Write one assumption, one target group or source, one action they must take, one pass/fail threshold, one deadline, and one cost cap. Run no test until those six lines are visible.

A small test can reduce uncertainty. It does not guarantee demand, price, margin, delivery, safety, legality, financing, or future success.

Two people comparing plans together at a café table

Look up from the worksheet

A conversation becomes useful when both people can see the same problem.

The work is still human—even when the lesson lives on a screen.

See the boundary

One decision test. One applause trap.

Worked example

“Three local shops will pay for a two-week parts-delivery pilot.”

Test: offer ten qualifying shops the same real price, service area, and response time.

Rule set first: proceed at three paid pilots, revise at one or two, stop at zero.

Still unknown: repeat demand, route density, and long-term margin.

Hostile example

“Eight friends said they love it, so the market is proven.”

Encouragement is not the buying behavior named in the assumption. Without a realistic audience, price, action, threshold, and deadline, the result cannot change the business decision honestly.

Reusable work product

Build an Assumption Test Card.

Make one uncertainty cheap enough to inspect before it becomes a purchase, promise, hire, move, loan, or partnership.

Nothing is saved or sent from this public tool.