You see, our econometric models show that urban consumers will always have more money than farmers and so the farmland will disappear and the higher value use will prevail.

Er, ehem, uh, excuse me, Mr. Professor, sir, I realize that there is not a single Black Swan's chance in Hades, that such a thing as your model being, er, how shall I put this? Uh, perhaps, shall we say, Um, somewhat incomplete? .

Now,if you would sir, only as a hypothetical thought experiment, momentarily consider the possibility, however remote, that the urban consumer society's continued existence, upon which your premise is built, shall we say, runs into some unforeseen circumstances and runs out of access to legal currency.

I know, I know, Just to be clear, this is only a thought experiment, could never ever really happen, but what if it did? What do you suppose might happen in such a situation?"

The professor glares at the unimaginably dense individual standing before him and mustering every last bit of patience, slowly and with the clearest enunciation says, " You must not have completely grasped what I just said, You see, our econometric models show that urban consumers will always have more money than farmers and so the farmland will disappear and the higher value use will prevail. Now is that clearer?

Ah, yes, professor it couldn't be any clearer!