Estimating the cost of bad investments, or how much did the Church lose on you?
The NYTimes recently mentioned the Fermi game of figuring “ballpark” estimates of real-world numbers for questions you, at first glance, think of as un-estimatable – for example, how many piano tuners are there in Chicago? Though I am generally bad at math (and shun it), I like this game, and it occurred to me to ...