Nice summary. I write these posts to better understand how complex the world is. Your statement that "many things that turned out to be disasters looked perfect

Nice summary. I write these posts to better understand how complex the world is. Your statement that "many things that turned out to be disasters looked perfectly reasonable at the time" is why we've found it hard to improve at preventing these disasters. I think that's worthy of study. That's what this project is about. Glad you liked it!