Most founders spend months building something only to discover nobody wants it. The validation process doesn't need to take months — it needs to take 24 hours. Here's a structured three-part framework that costs nothing but your time and tells you whether your idea deserves the next six months of your life.

Part 1: Problem Validation

The first question isn't "will people pay for this?" — it's "does this problem actually exist and hurt enough?" Many founders invent problems based on personal frustration. That's fine as a starting point, but you need external confirmation before you build.

The Reddit Method (1 hour)

Search Reddit for your problem space. Not your solution — the problem. If you're building a tool to help restaurant owners manage no-shows, search "restaurant no-shows problem," "how to reduce restaurant cancellations," "guests not showing up." Read the top 20-30 posts. You're looking for: frequency of complaints, emotional language (frustration signals a real pain), existing workarounds (which means people care enough to improvise), and willingness-to-pay signals ("I'd pay anything to solve this").

If you can't find at least 10 posts discussing the problem in genuine frustration, the problem either doesn't exist, isn't painful enough, or isn't a community that uses Reddit. All three are important signals.

Five Customer Interviews (3 hours)

Message five people who match your ICP on LinkedIn, Twitter, or in relevant communities. Don't pitch your idea. Ask to learn about their experience with the problem. Say: "I'm researching [problem space] for a project. Would you spend 15 minutes sharing how you currently handle [X]?" Most people will say yes. In the call, ask: What's the biggest frustration with how you handle this today? What have you already tried? How much time/money does this problem cost you? What would the ideal solution look like?

Listen for pattern recognition across the five calls. If three out of five people describe the same pain in similar language, you've found something real.

Part 2: Demand Signals

Once you've confirmed the problem is real, you need to confirm there's a market — meaning people are already spending time or money trying to solve it.

Search Volume Check (30 minutes)

Use Google Keyword Planner (free) or Ubersuggest (free tier) to check monthly search volume for your problem keywords. You want at least 1,000 monthly searches for the core problem term in your target geography. This tells you people are actively seeking solutions — not just complaining about the problem.

Competitor Revenue Signals (45 minutes)

If competitors exist, that's a good sign. Search for 2-3 existing solutions on G2, Product Hunt, and the App Store. Look for review counts (100+ reviews means real traction), pricing pages (if they charge, customers pay), and Similarweb traffic estimates. If competitors have paying customers, the market is real. Your job is differentiation, not pioneering.

Willingness to Pay Test (1 hour)

Go back to your interview contacts or your Reddit threads. Post or message: "I'm building a tool that [specific outcome]. It would cost $[X]/month. Would you be interested in a beta?" You're not selling — you're testing price anchoring. If people ask follow-up questions about features, that's positive. If they ask "when can I sign up?", that's a strong signal. Silence or "sounds cool, good luck" means the price or the offer isn't resonating.

Part 3: MVP Test

You don't need a product to test demand. You need a mechanism that lets potential customers express intent — ideally with real commitment attached.

The Smoke Test Landing Page (3 hours)

Build a one-page site on Carrd or Webflow (free tiers exist for both) that describes your solution and has one call to action: "Join the waitlist" or "Get early access." No product behind it. Drive traffic via: a post in 2-3 relevant communities, a direct outreach to your interview contacts, and a few Reddit posts where you share a relevant insight and mention you're building something. Track email signups. A 15-20% conversion rate from visits to signups is a strong validation signal.

Fake Door Testing

If you already have an audience or existing product, fake door testing is even faster. Add a button for the new feature or product to your existing site or emails, point it to a "coming soon" page with an email capture, and measure how many people click and sign up. Real interest from real users is the gold standard of validation.

The 24-Hour Validation Sprint

  • Hours 0-1: Run your idea through the Idea Validator and then through Kill My Idea to surface the hardest objections
  • Hours 1-2: Reddit deep-dive on the problem space
  • Hours 2-5: Send 15 interview requests, conduct 5 calls
  • Hours 5-6: Search volume and competitor research
  • Hours 6-9: Build your smoke test landing page
  • Hours 9-12: Drive traffic via communities and outreach
  • Hours 12-24: Collect and analyze results

If your idea survives all three parts with positive signals, it deserves a serious build. If it fails one or more, you've saved yourself months and thousands of dollars. Either way, you win. Use the full Launchpad Nova toolkit to accelerate the next steps once validated.