A thought provoking perspective

Tom Baugh wrote a book called Starving the Monkeys. I'm about 50 pages into it, and already it has changed my perspectives. Here's one of his recent essays - it WILL make you think:

Imagine the following. Assume that the world has collapsed into chaos, and among the many survivors are two individuals in particular: Survivor A and Survivor B. Survivor A has ten pairs of shoes stored for the collapse, while Survivor B has a thousand pairs of shoes socked away. Survivor A takes loving care of each pair, while Survivor B runs his shoes hard, wearing them out and then grabbing another off the shelf.

Question: After fifty years, how many shoes does each survivor have to pass on to his
grandchildren?

Think hard. Hint: this is a trick question.

Go here for the answer.