While preparing a short lightning talk for an internal software unconference, I kept asking myself a simple question: what is genuinely worth saying in two minutes? In the end, I titled the slide “The Most Expensive Bug Is Not a Bug.” That felt like the simplest way to capture the idea. This led me to think about a phenomenon that extends far beyond software. In many well-known incidents, serious consequences emerged from the ways design choices guided interpretation, trust, and action. Systems behaved as expected, yet the way information was presented shaped how people understood the situation. Over time, small assumptions embedded in interfaces and interactions quietly influenced decisions with very real outcomes. This is something we all experience every day without realising it. When READ MORE