If at first an idea isn’t absurd, there is no hope for it.
Coming home today, coasting downhill, I announce that this is the way to seriously increase gas mileage - simply build all roads to slope downhill.
"There are a few details to work out," I say, "but the general principle is sound."
"You'll have to call it the Escher Expressway," said my wife, Sandi.
I simply can't imagine why this won't work. We may even be able to do away with combustion engines altogether. Needless to say, I'm very excited about this.