
The Lighthouse Keeper
You are not the keeper of the logbook: you are responsible for the ships, so measure the change, not the activity.
The Kitchen · 72 lessons, six seasons
Short, story-driven lessons on how good products really get built. Each one comes with a tool so you can use it in your next meeting.
Every lesson you can watch today.
From problem to product: outcomes, discovery, MVPs, focus, metrics and price.
11 of 12 lessons published
12 lessons shown

You are not the keeper of the logbook: you are responsible for the ships, so measure the change, not the activity.

Fall in love with the problem, and only date the solution: squeeze the packet by hand before you build the machine.

Don't just test the taste, understand the attachment: ask about the past, chase stories, and measure commitment.

Find your riskiest assumption, test it the cheapest way you can, and decide what success means before the results arrive.

An MVP is an experiment, not a smaller product: inflate the mattresses before you build the hotel.

Draw your four boxes: prioritise against a goal, count the cost of delay, and say no on purpose.

Measure what changes decisions, align on a North Star, respect retention, and never reward a number without a guardrail.

Product-market fit is pull, not push: watch retention, ask the disappointment question, and listen when people complain.

Don't build another paperclip: start with the job, design for mistakes, keep humans where it matters, and build your moat around the model.

Pricing is a promise: price on value, charge in a way that grows with your customer, and never let a price change feel like an ambush.

Look for the behaviour people have already invented, then make it safe, simple and trusted: don't fight reality, formalise it.
Great product teams win with a weekly rhythm of learn, decide, build and measure, and give everyone an andon cord.
Now serving weekly
One lesson a week, with its tool and a two-minute read. Unsubscribe any time.