Texans You Should Know is a series highlighting overlooked figures and events from Texas history. My distant cousin Doug Michels, a brash and enthusiastic futurist who, as a member of Ant Farm, helped create Amarillo’s iconic Cadillac Ranch fifty years ago, once wrote about the night that changed his life. Like his best tales, it was captivating, self-mythologizing, and hard to verify.His story went like this: Doug came to Texas from San Francisco in the spring of 1969 at the age of 25 to teach a seminar at the University of Houston architecture school. He led students on a wild journey of experiential learning, fueled by acid and pot, exploding conventions around the shapes and materials that make a building. They spent a night in the Astrodome…