Archegos was too busy for margin calls
We changed the URL from https://www.credit-suisse.com/media/assets/corporate/docs/ab..., which is one of those annoying links that downloads a file, and the title from "Postmortem in finance: How Credit Suisse lost $6B [pdf]", which was editorialized. (Please read the site guidelines! https://news.ycombinator.com/newsguidelines.html)A user suggested the Levine article as a better alternative, so we'll use that for now. If anyone knows a better URL, we can change it again.