Water is the single most important determination of civilization. I travelled around the world a couple of times and I have seen whole societies that disappeared because the water disappeared. People can survive recession and war, revolution and famine, plague, but they cannot survive without water. That ends the whole story, no matter how smart you think you are.
There is no question that we are facing constraints. They are already here in many parts of the world. Water, I presume, is going to get very expensive or else we are going to move to where the water is. This is how societies and civilizations have developed. Once upon a time there was a lot of farming in the Sahara desert that we now know of. It is now a desert and everybody moved away because there is no more water there.
Jim Rogers is a smart investor who co-founded the Quantum Fund with George Soros in 1973. By 1983 the fund gained more than 4000 percent.