On Monday morning, instead of packing—something that I’ve been saying a lot lately—I was doing research for strategies at Magic: the Gathering sealed deck tournaments, since I’m going to one on Saturday, and I generally suck at Magic, at least when it comes to the whole winning part. I ended up fascinated by the certainty with which experts break down how many lands you should have in a 40 card sealed deck, and got to thinking about the probabilities here.Read More »