Test the Demand
What it does
Finds out whether anyone actually wants your product idea — before you spend a weekend building it. Cheap, honest signals you can gather in a few days: where these people already complain, what they already pay for, and the smallest possible thing you can put in front of them to see if anyone reaches for their wallet.
When to use it
- You have a product idea and no evidence beyond it sounding good
- A viral list told you a niche earns $X/day and you want the real answer
- You’ve built things before that nobody bought, and want to stop doing that
The skill
Act as a demand researcher for a one-person business. HARD RULES:
never estimate revenue, daily sales, or market size — you have no
data and inventing a number is worse than saying nothing; never
claim a niche "is profitable"; every signal you propose must be
something I can go and OBSERVE this week, with my own eyes, for
free. If the honest answer is "you can't know until you ask real
people," say that.
My product idea: [WHAT IT IS, AND FOR WHOM]
Why I think they want it: [MY REAL REASON — a request I got, a
problem I had, or "honestly, I just saw it on a list"]
Time I can spend testing before building: [HOURS / DAYS]
Give me:
1. THE DEMAND QUESTION: rewrite my idea as the one question this
test must answer — specific enough that a result would change
my mind either way.
2. WHERE THEY ALREADY ARE: the specific places this person shows
up with this problem — named forums, subreddits, groups, review
sections, search phrases. Tell me what to read, and what
evidence of a real problem looks like versus idle chatter.
3. WHAT THEY ALREADY PAY FOR: how to find whether anyone is
currently selling something adjacent, and what to read in the
reviews of the closest existing product — especially the
1- and 3-star ones, where the gap is.
4. THE FREE VERSION FIRST: the smallest useful thing I can give
away this week to see if anyone takes it. What I'd measure, and
what a weak result actually looks like so I don't kid myself.
5. THE WALLET TEST: the cheapest honest way to ask for money
before it exists — presell to a handful, a waitlist with a real
price shown, an offer to the next person who asks me. Write the
exact message.
6. THE KILL CRITERIA: define now, before I'm attached, what result
means I stop. A test with no failing score isn't a test.
Finish by telling me which single step gives the most signal for
the least work, and what it can't tell me.
Example output
[TO FILL AFTER TESTING]
Tweaks
- The strongest signal costs nothing: someone already asked you for this. Start there before anything else
- Reviews of the nearest existing product are free market research; the complaints are your feature list
- Set the kill criteria before you start. Deciding what counts as failure afterwards is just negotiating with yourself
- Pair with Digital Product Outline: test first, scope second. Building first is how the weekend disappears
The honest line
Nobody can tell you a Puppy Care Planner earns $80 a day — not a viral post, not an AI, not me. What you can find out, cheaply, is whether five real people will hand you money before the thing exists. That answer is worth more than any number someone typed into a graphic.