When Levi Felix left his power job, he set out to travel the globe. He wound up learning how to help people disconnect from technology. Also in this show: One afternoon, Ed Rosenthal went for what he thought would be a short hike in the Mojave Desert and wound up lost; Margareta Claesson and her husband, noted physiologist Knut Schmidt-Nielsen, studied the camel and found the key to its survival is in its nose.