I say to you that we are full of chemicals which require us to belong to folk societies, or failing that, to feel lousy all the time. We are chemically engineered to live in folk societies, just as fish are chemically engineered to live in clean water—and there aren’t any folk societies for us anymore. (Kurt Vonnegut)
Wolfgang Pauli apparently once said of a student’s work: “This isn’t right. This isn’t even wrong.”, to deride it for being unfalsifiable. Grad school isn’t quite that bad. We’re all running the experiment together every day. We can tell whether or not it’s working, at least in theory. But only if we’re willing to look. I’m looking; I say it’s not working, at least not for graduate students, not on average (mean or median, pick your poison).