As I've said before, some who are Dead do not lack life, and some who are Grandpa have no children. A good bit depends on your motivation. A life growing up (and a career) on the farm gave me a seemingly rare perspective on riding my bike 40 miles. It's not that far. And at my current stage of life, I basically have nothing better to do. It's a lifestyle, not a hobby. I could be fishing instead, of course, but....