The History of Categorization in Engineering

George: "It was an incredibly rewarding experience to organize it. It's incredibly nerve-wracking for the last couple of weeks leading up to it, but it's all been worth it" The technology failed us at the end, but other than that, the talks were amazing and the live Twitter stream was going awesome. So... George, what happened? I'm fine. I'm just sort of so and then nothing. Yeah, he wasn't talking about categories as much as the way they get used in engineering through time.