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Boris Binyaminov

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A grader that is pure code, and the three monotonicity rules that do the work

A grader that is pure code, and the three monotonicity rules that do the work

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3 min read
We ship a thing that judges startup ideas, and we could not answer whether it works

We ship a thing that judges startup ideas, and we could not answer whether it works

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2 min read
Founder-market fit is usually discussed as credentials or as encouragement, and neither is answerable

Founder-market fit is usually discussed as credentials or as encouragement, and neither is answerable

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3 min read
Sort your validation checklist by what an honest answer costs

Sort your validation checklist by what an honest answer costs

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2 min read
A score with no published rubric has no floor to fall to

A score with no published rubric has no floor to fall to

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2 min read
Two of the three refusal triggers are read from the founder, not the idea

Two of the three refusal triggers are read from the founder, not the idea

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3 min read
A claim can never be promoted up the provenance ladder

A claim can never be promoted up the provenance ladder

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3 min read
36 dead ideas carry 57 reasons, and the overshoot is the useful part

36 dead ideas carry 57 reasons, and the overshoot is the useful part

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2 min read
The wrapper objection killed 6 ideas. Missing evidence killed 21.

The wrapper objection killed 6 ideas. Missing evidence killed 21.

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2 min read
Judge a SaaS idea on the parts you are worst at estimating, first

Judge a SaaS idea on the parts you are worst at estimating, first

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3 min read
Rank your ideas by time to an answer you cannot explain away, not by build hours

Rank your ideas by time to an answer you cannot explain away, not by build hours

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2 min read
Display rounding is a semantic boundary: our worked example sat on one

Display rounding is a semantic boundary: our worked example sat on one

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3 min read
Of our 12 deal-breaker checks, exactly one responds to the founder's balance sheet

Of our 12 deal-breaker checks, exactly one responds to the founder's balance sheet

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2 min read
Tech startup ideas: what survives a feature landing

Tech startup ideas: what survives a feature landing

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3 min read
Platform risk gets the essays. In our own kill data it comes third.

Platform risk gets the essays. In our own kill data it comes third.

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2 min read
Your customer count is the easy half. The support hours next to it decide your price floor.

Your customer count is the easy half. The support hours next to it decide your price floor.

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3 min read
Our scoping tool refuses in 4 of the 7 states it can be in, and that ratio is not a tuning choice

Our scoping tool refuses in 4 of the 7 states it can be in, and that ratio is not a tuning choice

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3 min read
We published our scoring weights, and the useful number is the 4x leverage gap

We published our scoring weights, and the useful number is the 4x leverage gap

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2 min read
At 30 support minutes per customer, 100 customers is 11.5 hours a week

At 30 support minutes per customer, 100 customers is 11.5 hours a week

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3 min read
At $9/month you need 334 customers and 19.2 support hours a week

At $9/month you need 334 customers and 19.2 support hours a week

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3 min read
We sourced 3430 startup ideas and kept 93. The filter is the product.

We sourced 3430 startup ideas and kept 93. The filter is the product.

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2 min read
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