The Real Product Market Fit
Key ideas
Seibel argues that real product/market fit means being swamped by happy customers, and that until then founders should stay lean and stick to the problem, not their solution.
- 1
Fit means being overwhelmed
Seibel starts from Marc Andreessen's definition and restates it: you have fit when usage overwhelms you, usually to the point that keeping the product running blocks major changes. In Seibel's view, headcount or a big funding round does not show it.
- 2
Stay lean until you are there
Seibel warns that founders who wrongly believe they have fit start hiring, raising burn and optimizing before discovering what needs to be built. The advice is to keep burn low until customers are swamping the team; only after real fit does Seibel see room for optimizing, specialist hires and strategic investments.
- 3
Commit to the problem, not the solution
Seibel writes that the problem, meaning the market, is the real opportunity and that a founder's first solution is usually wrong. Launching, talking to customers and iterating are what lead to a product with fit, and Seibel places founder genius most often in choosing the right problem.
- 4
Look for problems as urgent as burning hair
Extending a Sequoia phrase, Seibel pictures a friend whose hair is on fire: nothing else matters to them, they would use a hose at once, and they would even grab a brick. The point is to find problems dire enough that users will try an imperfect first version.
- 5
Launch an MVP and out-serve big companies
In a good market, Seibel writes, an MVP is enough to bring in first customers and the feedback that shapes later versions. Small companies can move fast, deal with problems through unusually good customer service, and face customers who expect less.
In Michael’s words
“What I look for is a frantic founding team trying to deal with ever-growing numbers of happy, loyal, and ideally paying customers. Until then, stay lean, keep burn low, and resemble a Navy SEAL team instead of an Army battalion.”
Michael Seibel·The Real Product Market Fit·Read in context(opens the original in a new tab)“Founders often hold too tightly onto solutions and too loosely onto problems.”
Michael Seibel·The Real Product Market Fit·Read in context(opens the original in a new tab)“If you handed them a brick they would still grab it and try to hit themselves on the head to put out the fire.”
Michael Seibel·The Real Product Market Fit·Read in context(opens the original in a new tab)About this entry
- Published
- Jun 27, 2016
- Publisher
- ycombinator.com
- Type
- Essay
- Language
- English
- Added
- Nov 2, 2026
- Source last checked
- Nov 2, 2026
Cover photo of Michael Seibel, not from this work: TechCrunch, CC BY 2.0, via Wikimedia Commons.
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