Sad to learn (via Wikipedia watchlist of course) that Donald Shoup https://en.wikipedia.org/wiki/Donald_Shoup died a couple days ago. I never read _The High Cost of Free Parking_ cover to cover but it comes up in my thoughts frequently and I occasionally make reference to it. Shoup pointed out one of the many ways our world could be far better and was himself a Shoupista, relentlessly working to make it so til the end. Personal site https://www.shoupdogg.com/