12/15/2011 09:03 am ET

How Hard Santa Clause Works On Christmas Eve

Granted, it seems... impractical. Over the course of one night, St. Nick has to stop by the home of every Christian child in the world. Of which there are a lot - an indeterminately large number of kids waiting for their gifts.

I decided to figure out how many, how big a task Mr. Claus faces as he races west across the face of the globe, staying ahead of the sun. And I did. Or, anyway, I came up with a pretty solid estimate.

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