Framework · Eric Ries
Lean Startup — ship a tiny version, then shut up and measure
Day 1 is not a 40-page plan. Day 1 is the smallest thing a real person can use, plus a way to see if they used it. Build-measure-learn is a loop, not a slogan you put on a Notion cover.
8 min · educational exit planning
One bet per loop. If you cannot write the bet in one sentence, you are not experimenting — you are decorating.
What the loop actually is
Build the smallest version that can fail in public. Measure behavior, not compliments. Learn one thing. Repeat. The point is not speed for its own sake. The point is to stop funding fantasies with evenings you will not get back.
- Build: one core job, one path, one way to get a yes or a no.
- Measure: did they use it, pay, reply, or return — not 'they said it was interesting.'
- Learn: keep, kill, or change the bet. Write it down. Do not 'feel' it.
How YEP sequences this
On the 10-phase ladder this is weeks 1–3: clarity, a named buyer, then a stripped MVP. Launch Score cites this framework when an idea is still a feature list pretending to be a company. The 30-day roadmap is the same loop with dates on it.
How to run one loop this month
Pick the riskiest assumption — usually 'someone will pay' or 'someone will switch.' Design the cheapest test that can prove you wrong. A landing page with a price and a calendar link is a test. A six-month build is a stall.
- Write the assumption: '[Named buyer] will pay $[X] for [outcome] within [time].'
- Cap the build at something you can finish in 7 days with no-code.
- Decide the kill number in advance (example: 10 conversations, 0 paid intent → reframe).
Common ways founders fake the loop
They measure vanity (followers, waitlist emails from friends). They change three variables at once so nothing is learnable. They call a pitch deck an experiment. A deck is a story. An experiment has a fail condition.
This week
1. Name the bet
One sentence: who pays, for what, by when. If you need a second sentence, you have two bets. Pick one.
2. Cap the build
List features. Cross out everything that does not test that bet. What remains should fit in a week.
3. Define fail
Write the number that means 'wrong.' Conversations, deposits, or booked calls — not vibes.
Related in the archive
- Minimalist entrepreneur (Sahil Lavingia)
Stay small until revenue is real. No-code, no team, no fancy stack until a customer pays.
- 30-Day Launch Roadmap
Week-by-week sprint plan already in the library. First 30 days = validation, not a rebrand.
- Action over theory (About)
Day 1 is not 'meditate on your customer avatar.' It is find 10 real humans who might pay, and message them.
- The Mom Test — real conversations
Do not pitch. Ask about the last time they felt the problem. Names, not categories.
Next: score the idea or return to all guides.
Educational exit-planning material. Not legal, financial, tax, or investment advice. Talk to real buyers. When the stakes are formation, contracts, or money you cannot lose, talk to a licensed professional — not a webpage.