By Clint Younts

There is a mass of humanity on this planet, and like snowflakes and zebras, no two people are alike. There are identical twins that look alike but might be different in other ways. And then, there’s the belief that somewhere, you have a doppelganger, a complete stranger who looks so much like you that you’d swear some scientist cloned your DNA. I actually saw my doppelganger one day as I was walking to class at the University of Tennessee (Go Vols!) back in 1977. I saw...