Notes from the loft.

Short, sourced pieces on the moments our apps are built for. Every claim is checked against the app itself.

• October 27, 2026 One average return hides the futures that run out Why a retirement spreadsheet with the same return every year can look fine, and what a Monte Carlo simulation shows instead.
• October 27, 2026 How to get exact hex codes from a photo Why the color of a wall in a photo is hundreds of colors, three ways to pick it, and how to turn a photo into a palette you can paste into code.