‘Contrariwise,’ continued Tweedledee, ‘if it was so, it might be; and if it were so, it would be; but as it isn’t, it ain’t. That’s logic.’
–Lewis Carroll
When I first read Why We Get Fat, by Gary Taubes, and even more so when I delved into his longer book, Good Calories, Bad Calories, I felt a kind of mental relief, as if someone had removed a splinter from my brain.