I’ve been making videos on this channel since 2014, which means I’ve also been making mistakes since 2014. This video is me doing the slightly uncomfortable-but-necessary thing: going back through years of uploads and correcting the record. Some of those are small errors — a wrong detail, a misleading phrasing, a thing that was technically true but gave the wrong impression — and some are bigger, where I should have checked more carefully, or explained more clearly, or not oversimplified something complicated. The point isn’t “look how bad I was”, it’s that accuracy is a process. When you make explainers about science, tech, language, places and infrastructure, you’re always balancing clarity against edge cases, and sometimes you get that balance wrong. So I talk through what happened, what I got wrong, and what I’d do differently now — plus I’ve put the full list of corrections in one place so it’s easy to find. If you watch my videos because you trust me, then maintaining that trust means being public when I mess up, and making it right.