PMF Insights for Founders
Strategy, psychology, research, and execution — written for tech founders building toward product-market fit.
I Built a Product Nobody Wants: What To Do Next
Discovering that nobody wants what you built is one of the most disorienting moments in a founder's journey. Here is a practical diagnostic framework for what to do when the feedback loop finally tells the truth.
Free Users Won't Pay: How to Diagnose the Real Problem
You have users. They signed up, they explored the product, some use it regularly. But conversion to paid is negligible. Here is how to tell whether you have a monetisation gap or a PMF gap — because the fix is completely different.
How to Measure Product Market Fit (Beyond the 40% Rule)
The Sean Ellis test is the most cited PMF framework in startup history. It's also a starting point, not a complete answer. Here is what a multi-dimensional PMF score adds — and why the 40% number alone keeps founders stuck.
Am I Building the Wrong Thing? A Diagnostic Framework
The question most founders avoid asking out loud is the one they cannot stop thinking about. Here is a structured framework for answering it honestly — and knowing what to do either way.
Founder Cognitive Biases That Kill Startups (And How to Detect Yours)
Confirmation bias, sunk cost fallacy, optimism bias, projection bias, overconfidence — five cognitive patterns that affect high-performing founders disproportionately. Here is what each one looks like in practice, and how to detect them before they become irreversible.
Why Founders Mistake Enthusiasm for Traction
Early customer enthusiasm is the most dangerous feeling in startups. Not because it is false — but because the founder's brain is wired to amplify it and ignore the evidence against it.
The ICP Precision Test: How to Know If You've Found Your Real Buyer
Most founders can name their ICP. Few can describe a specific decision they would make differently because of it. Here is a three-step test that separates a real ICP from a comfortable fiction.
North Star Metrics That Actually Predict PMF
Most North Star metrics measure activity. A few measure value. Only value metrics predict product-market fit. Here is how to know which type yours is.
When to Stop Building Features and Start Measuring Fit
Building feels like progress. It is not always the same thing. Here are five signals that tell you the next sprint should be a measurement sprint, not a feature sprint.
This B2B SaaS Founder Scored 61/100. Here Is What Changed in 12 Weeks.
A sales intelligence startup scored 61/100 on the Clarity on PMF diagnostic in February 2026. The assessment identified four structural issues. By week 12, three were resolved and the score moved to 74.
The Pivot Decision Framework: When to Persist and When to Change Direction
Pivoting is not the failure. Pivoting without a clear decision framework is. Here is how to build the three-signal trigger that separates a disciplined pivot from capitulating to noise.
Confirmation Bias in Customer Interviews: The Questions You Are Afraid to Ask
The average founder-led customer interview contains 4 to 6 confirmation bias patterns. Most founders leave those conversations thinking they got clean signal. Here is how to design interviews that break the pattern.
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