J. Marsh
Lead Editor, Startup & Product
Updated
Most ideas die from premature building, not bad luck. Validation is the discipline of finding out, as cheaply as possible, whether enough people care enough to pay. This guide walks through the practical steps used by experienced founders to pressure-test an idea in two to four weeks.
Write the idea as a falsifiable hypothesis
An idea you cannot disprove is an idea you cannot test. Restate yours as: 'We believe [audience] will [pay or do action] because [reason], and we will know we are wrong if [signal].' Specificity is the whole point.
If your hypothesis includes 'everyone' or 'better', rewrite it. Pick a narrow audience, a concrete behavior, and a measurable threshold.
Run 10 problem interviews before pitching anything
Problem interviews focus on the customer's world today, not your solution. Ask about the last time they experienced the problem, what they tried, and what they spent.
Listen for unprompted emotion, time spent, and money spent. These are stronger signals than 'that sounds cool'.
Build a smoke test, not a product
A smoke test is a landing page or short video that describes the product as if it already exists, with a single call to action. The goal is to measure intent: email signups, pre-orders, or booked calls.
Drive a small amount of targeted traffic and watch conversion. A 5 to 10 percent conversion to a meaningful action from a relevant audience is a strong early signal.
Charge before you build
Words are cheap, credit cards are honest. Pre-orders, paid pilots, or letters of intent change the entire conversation with yourself and with investors.
Offer a discounted price for early commitment and be transparent about the timeline. Refunds are part of the deal.
Decide before you fall in love
Set the kill criteria up front: how many interviews, how many signups, how many pre-orders, by when. Write them down before you start so excitement does not move the goalposts.
Key takeaways
- -Restate every idea as a falsifiable hypothesis
- -Do problem interviews before solution interviews
- -Smoke tests measure intent without building a product
- -Pre-orders are the cleanest form of validation
- -Pre-commit to kill criteria
Frequently asked questions
- How many interviews are enough?
- Most patterns become visible after 10 well-run interviews with the same audience. Stop when you can predict the answers.
- What if people say they would pay but do not?
- Treat stated intent as a hypothesis, not data. Convert intent into a paid commitment to validate it.
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