The Replacement Threshold: Decide When a Gadget Deserves an Upgrade
A practical replacement-threshold method for deciding when an aging gadget should be repaired, reassigned, or replaced without chasing every new release.
The Assumption Ledger: A Founder’s Method for Testing a Business Before Building It
A disciplined founder’s method for identifying, ranking, testing, and retiring the assumptions that quietly determine whether a business can work.
The Three-Zone Packing System: Choose Travel Gear by Access, Failure, and Reuse
A practical system for choosing and placing travel gear according to when it is needed, what happens if it fails, and how often it can be reused.
The Context Map: How to Explain a Cultural Tradition Without Flattening It
A practical context-mapping method for explaining traditions with clarity, humility, internal variety, and respect for the people who keep them alive.
The Boundary-First TypeScript Method: Catch Uncertainty Where Data Enters Your App
A practical TypeScript architecture for treating external data as unknown, validating it once at the boundary, and keeping the application core simpler, safer, and easier to change.
The Clean Stream Method: A Household Recycling System That Prevents Wish-Cycling
A practical household system for making better recycling decisions, reducing contamination, preparing accepted materials, and keeping uncertain items out of the bin until verified.
The Evidence Ladder: How Historians Turn Fragments Into a Trustworthy Story
A clear guide to the reasoning moves behind responsible history, from identifying a fragment and its context to comparing accounts, marking uncertainty, and building a proportionate narrative.
The One-Weekend Upgrade Map: Refresh a Home by Friction, Not Fashion
A room-by-room method for choosing affordable weekend home improvements by the daily friction they remove, with clear scope, sequencing, testing, and stopping rules.
The Texture Ladder: Build Satisfying Plant-Based Meals Without Imitation Meat
A practical texture-first method for building plant-based meals that feel complete, varied, and deeply satisfying using ordinary vegetables, grains, legumes, seeds, and sauces.