It lurks in the corner of our imagination, almost beyond our ability to see it: the possibility that a tear in the fabric of life could open up without warning, upending a house, a skyscraper, or a civilization. Today, nine out of ten...

How do other countries create "smarter" kids?In a handful of nations, virtually all children are learning to make complex arguments and solve problems they've never seen before. They are learning to think, in other words, an...