[MoreMoschops]

How about the guy who does a minimum of 20 per day, and does extra on the good days? He's going to clean your clock. Or the guy who uses a bicycle. Or a car. Or flies. Or takes a different route. What exactly is the point of this story? It's advocating consistency through a completely fictional, contrived story.

[npsimons]

Okay, change it a bit: you're hiking the Pacific Crest Trail (2,663 miles). You can't take a bike, a car, a plane or a different route. And most people agree, 20 miles a day is a good upper limit. Much more than that and you will make yourself too sick to continue. Bonus points for the fact that it's such a long distance that you can't carry all your food with you, so you must be extra paranoid and have a plan (like the article mentions) for food caches.

The more I think about it, the more I wonder why he didn't use hiking the PCT as his scenario, other than many people haven't heard of it.