I’m sure I’ve nattered before that I persuaded my consort not to invest in the evil golden-arched empire after he asked for a non-gut reason beyond “processed crap bad.” Two words worked: mad cow. Just the potential made the stock a crazy risk. But increasingly my second premonition is materializing: The main ingredient is literally unsustainable. The world simply can’t raise enough cattle to fill buns for a population of 8 billion. And now the reports are starting: Drought is taking a toll just in this country, with herds shrinking and prices rising. I’m sure Dubai is loving its falafel alternative. But the burger bubble is about to burst.