You've probably heard of getting "something for nothing." We all want that, though we're skeptical that it's really possible. After all, there is no such thing as a free lunch. The late, great University of Chicago economist Milton Friedman was famous for saying that. And he was right. If a restaurant is offering free food, it is probably making it up with the drink prices. If we take a client out for lunch, they won't pay for the sandwiches but they are paying by lending us their time and ears. And as the Boss said, "the door's open/but the ride - it ain't free."
How about the opposite? Have you ever heard of getting nothing for something? That doesn't sound good, does it? Why would you pay for something that you could get for free? It doesn't take a University of Chicago scholar to figure out that getting nothing for something is dumb. But it apparently takes a University of Chicago graduate, professor, and Seventh Circuit judge to explain why getting nothing for something means that a class shouldn't be certified.
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