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Stop validating your product. Start validating the Founder-Market Debt.

Most advice on this board is about landing pages and waitlists. But after analyzing the "9 Circles" of startup failure for my book Startup Inferno, I’ve realized that most indie hackers validate the market but completely ignore the internal debt they are building.

You can have 1,000 sign-ups, but if you're trapped in the Circle of Heresy (denying basic unit economics) or the Circle of Violence (building a workflow that leads to inevitable burnout), your validation is a false positive.

Here is my "Anti-Inferno" checklist for your next idea:

Circle 3 (Gluttony) check: are you solving a problem that requires massive scale to be profitable, or can you survive on "lean" calories from day one?

Circle 6 (Heresy) check: are you ignoring a fundamental "unsexy" truth about your industry just because you have a "disruptive" vision?

Circle 9 (Treachery) check: is your growth model dependent on exploiting a loophole that will eventually freeze the trust of your users?

I’m currently offering a "Map through the Inferno" for early-stage founders. If you’re struggling to see if your current project is a viable business or just a beautiful trap, drop your pitch below.

I’ll give you a "Circle Audit" based on the principles of Startup Inferno.

Check out the full framework here: dub.sh/MfnhapC

#startups #validation #indiehackers #buildinpublic #founders

on January 27, 2026
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    This is a really interesting way to think about validation. A lot of startup advice focuses almost entirely on demand signals (waitlists, signups, etc.), but it’s easy to overlook whether the underlying business can actually sustain itself once those early signals convert into real users.

    The “lean calories” point especially resonates. Some ideas look great on the surface but only really work at massive scale, which makes the early stages incredibly difficult. I’m curious how you personally evaluate that early on and are there specific unit economics or signals you look for before committing to building something?

    1. 1

      Spot on. "Lean calories" is the exact trap-lots of digital sugar that looks like growth, but leaves you starving for revenue when the servers bill arrives.
      To catch this early, I look at two core signals before writing any code:

      • Willingness to commit friction (not just praise): anyone will click a button or sign up for a free waitlist; it costs them zero effort. The threshold I look for is whether someone is willing to trade a scarce resource, time, data, reputation, or money, to solve the problem right now. If they aren't willing to jump through a small hoop, the pain isn't sharp enough for an early-stage business.
      • The Unit Economics math on day 1: even if it's back-of-the-napkin, I map out what the business looks like with 10 customers vs. 1,000. If the model only works at hundreds of thousands of users (like ad-supported plays or ultra-low ticket SaaS with high churn), it's a massive red flag for a solo builder or small team. I want to see a path where a handful of high-value customers can sustain the project early on.
        It really changes how you filter ideas when you stop looking at "how big could this be?" and start asking "how hard is this to break?"
        How about you? Have you ever fallen for an idea that had great demand signals on paper, only to realize the unit economics or effort required didn't make sense once you dug in?