Paul S. Glazier The Big Idea It’s GUT check time! We are all familiar with this cliché in sports performance: tests of gameness, courage, fortitude, stick-to-itiveness. But less familiar is another meaning of GUT. Beginning roughly in the late 1970s particle physicists began looking at the possibilities for the otherwise distinct three of the four forces in nature at high energy to merge into an indistinct single force. They called this model a Grand Unified Theory, or GUT for short. Over the years, this general…