← 2026-02-25THE SPIRAL NOTEBOOK · 2026-02-26 · Back to today's site →0000-00-00 →
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December 2, 2025
One day, they'll stop calling it "basgetti"

Childhood doesn’t slam doors. It slips out quietly while you're busy making lunches and answering emails.

~1 min
November 25, 2025
Watching Someone Else Exercise

Re-reading tricks you into feeling smart; retrieval is the only thing that actually builds knowledge you can use.

~3 min
November 13, 2025
Choosing What I Keep

From flashcards to forgetting everything—how I built Etch to help ideas actually stick instead of fade away.

~3 min
June 5, 2025
Subtract to Ship

The way a product team moves quickly, delivers value, and achieves perfection.

~7 min
April 10, 2023
Avoiding Technical Debt

The Strategic Importance of Domain Fidelity in Software Development

~6 min
August 28, 2020
Removing Product Friction Isn't Always Good

Removing too much friction can hurt user safety, impact other features, or cause system failures. Balance friction reduction with your product goals.

~12 min
August 19, 2020
Customer Interview Frameworks

Six proven frameworks—Voice of Customer, Jobs to be Done, Follow Me Home, Focus Groups, SPIN, and Four Helpful Lists—for conducting effective customer interviews.

~11 min
August 5, 2020
Competitors Who Aren't

Companies with the same problem space but different market spaces will eventually compete as they grow. Plan for future overlap now or risk becoming the next Blackberry.

~12 min
July 29, 2020
The Product Imperative

Product managers fall prey to six default behaviors that kill innovation. Organize your work to actively resist these traps.

~15 min
July 22, 2020
OpenAI's GPT-3 Will Change How We Build, With or Without It

GPT-3 shows us how creating better primers—the right medium, direction, and quality—helps product managers generate novel and valuable solutions.

~10 min
July 8, 2020
Part 2 - Building a Product Sieve

Build a product sieve using problem statements, vision, and sieve questions to separate high-quality ideas from low-quality ones.

~12 min
July 1, 2020
Collaborative Writing as a Product Manager

Write in public from day one to generate better ideas, let people read your mind, and build team ownership of product decisions.

~8 min
July 1, 2020
Part 1 - Building a Product Sieve

Stop working on valueless features by creating a product sieve that filters high-value ideas from motion without results.

~9 min
June 24, 2020
The Map Is Not the Territory

Great product managers understand that mental models and abstractions are useful but imperfect representations of reality. Build better maps of your domain.

~8 min
June 17, 2020
Problem Space vs Solution Space

Product managers own the "what" by living in problem space—understanding target customers, their needs, and value proposition—while engineering focuses on the "how."

~5 min
June 10, 2020
Leverage

Stop doing low-leverage tasks and start working on things that provide 80% of value for 20% of work by casting vision and setting clear expectations.

~6 min
June 3, 2020
The Bike Shed Effect

Teams waste time debating trivial issues while ignoring complex, important decisions. Force people to write and think deeply to solve this.

~5 min
May 27, 2020
Inversion <> uoᴉsɹǝʌuI

Use inversion thinking to ensure your team works on high-impact features by defining what success looks like and what will guarantee failure.

~6 min