I’ve never understood the need to be challenged. Particularly when it comes to challenging yourself physically. That old saying about anything worth having is worth doing, or some such nonsense, holds no water for me.  I like things easy. I enjoy not just creature comforts, but any comforts. I try never to be too hot, God forbid I be too cold. I need to be in surroundings with lots of natural light on a daily basis, yet protected from too much sun and bugs. I could go on, but you get the picture. So you can imagine the idea of walking the Appalachian Trail (2,185 miles) for 4 months sounds…