You can buy just about anything in this world but time, and Craig Bierly is a man who truly understands the sacred and finite gift of time. After dedicating 26 years of his life to the aerospace industry, he could have comfortably retired to a sedentary life in a big house, but he opted instead for a nomadic life in his van—long before #vanlife became a hipster trend and hashtag. More than a decade after his retirement, Bierly is still on the road, chasing his dream of riding as much United States singletrack as he possibly can until his own time on the Earth runs out.