03Learn

Learn how it’s made

The methods behind the work, written so you can use them. Some are ways of thinking you can run tonight with a notebook and an AI. Some are labs you can play until an idea clicks. All of them came out of building something.

methods
5
labs that teach
3
worked problems
2
to take away
4

Start where you are

Read, then use

Methods

Short, practical, with a template to copy at the end of each. Start with whichever matches where you are: stuck, new to a field, or holding a result you are not sure about.

Methodnew

The Filip Method

For a problem that has eaten two evenings: one plan file, five framings before the first attempt, and dead ends kept as data.

Use it when you are stuck → Methodnew

Mapping a New Field

Get your bearings in territory you have never worked in: raw material first, a ladder of questions, and an AI that argues with your map.

Use it when you are new → Methodnew

Calibrate Before You Search

Five habits from a small planet survey for deciding which finds to believe. Works on A/B tests and model evals too.

Use it when something turns up → Methodnew

Working With Claude

The 64/33/3 split behind everything on this site: you set direction, Claude executes, and the small share you refine together decides the result.

Use it before you hand off → Methodnew

Rescue a Screen That Looks Wrong

Ten ways a generated interface fails, named so you can spot them, and the component choices that fix each one.

Use it when it looks off →
Play

Labs that teach

Explorables built around one idea each. Move a slider, watch the idea happen, then read the paragraph that names it.

Lab · dendrochronology

Heartwood

Read a climate out of wood. Grow a cross-section, then slide a floating core along 391 years of bristlecone rings until it finds its date.

You learn crossdating → Lab · synchrony

Fireflies

A field of fireflies on private clocks. Turn up how much they watch each other and they fall into one pulse.

You learn the Kuramoto model → Lab · physics

Time Crystals

Kick a chain of spins every period and it answers on every second beat, a rhythm the drive never played. Then make the kicks sloppy until it breaks.

You learn period doubling →
Try

Worked problems

Real problems, worked in the open, each ending with a section that hands the pencil to you.

Mathematics

A Proof You Can Check Yourself

An AI-credited note on Erdős Problem 793 that needs only the prime number theorem and a geometric series. Small enough for a kitchen table.

Your turn at the end → Computation

Two Ways to a Number Nobody Had

The integer sequence encyclopedia marks where it wants more terms. Two routes to new ones, and how to make the slow route fast enough to matter.

Your turn at the end →
Take away

Build your own

Kits and tools you can take away and make yours, and the two essays on how a product manager learned to ship with Claude.

Kit

Portfolio in a Box

This site's bones as a download: one stylesheet, the voice intact, and five steps to your own front door.

Download the kit → Essay · LinkedIn

The $1K Claude Code Credit

A product manager with no coding background, 31 days and 215 commits later: the collaboration split that made shipping work.

Read part 1 ↗ Essay · LinkedIn

If You Can Read a Recipe, You Can Now Be a Developer

Part 2: what happens when the framework compounds. 5.5 hours to a working MVP, and the warning label that comes with it.

Read part 2 ↗ Tool

Career Compass

A free job-search assistant that runs inside Claude, keeps your facts in plain files on your disk, and renders a résumé per posting.

Read the walkthrough →