Stan Druckenmiller ... when I look at the current picture of expected tax revenues combined with benefits promised to future generations, this is the most unsustainable situation I have seen ever in my career. The disaster that Druckenmiller sees coming for the United States is all about changing demographics and entitlement spending. They don’t add up to a sustainable situation. In 1940, entitlement payments, which include everything from disability payments to Social Security to Medicare, amounted to just over 20% of annual government spending in the United States. Today, entitlement spending has swelled to nearly 70% of the annual federal...