a machine for business ideas
One buildable business a day — pressure-tested against real demand, unit economics, and everyone who already tried it. No decks, no vapour. The brief and the math.
01 — today's shortlist
Forty-one went in. Thirty-eight are filed with the exact reason they failed.
Retired EV packs sell for scrap. Graded, matched and racked, the same cells become buffer storage for small solar installers priced out of new ones. The grading is the business; the cells are a commodity.
Hospitals and warehouses run 24 hours; licensed care does not. Franchise the compliance and staffing, sell seats to the employer, not the parent.
Small-business brokers still trade folders over email. Sell the boring diligence workflow at a price a two-person shop will actually pay.
02 — method
Four passes. Each one is designed to kill, and most of them do.
We start from money already moving — spend that exists and is badly served. Nothing enters on taste alone.
kills 46%Unit economics, capital in, break-even month. If it only works at scale, that is the first line of the brief.
kills 24%Prior attempts, why they died, what changed since. The graveyard is the most useful page we write.
kills 19%What stops the second entrant — route density, licence, a relationship. If nothing does, we say so plainly.
kills 4%04 — pipeline
Five passes between raw signal and a brief worth acting on.
You are inside the archive. Scroll to fly through it — drag to spin it around you.
06 — the word
Eighty-four panels, one word, and 1,204 briefs behind it. Keep scrolling to assemble — then grab it and spin.
07 — read it
The whole archive is public — briefs, math sheets, sector maps. Read it, take one, go build. If it works, we would like to hear about it.
A daily brief on businesses that can actually be built. Written in the open, filed with the math.
or type “cull” anywhere
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best 0