The legend of Santa Claus’s sleigh being pulled by a bunch of reindeer in a frigid arctic environment and ascending up to the sky with its extraordinary load of toys was born a little over 200 years ago. On the one hand, this legend goes through the trouble of providing details about the jolly old man Santa Claus and his delivery of toys to children who had been good all around the world. On the other hand, this legend fails to explain how he does it. What makes the sleigh soar through the air? What enables the reindeer to fly? And how can they get around to all corners of the earth in a single night with only Rudolph the Red-Nosed Reindeer to light up the way? I am a pragmatist who needs realistic explanations and so I created my own. Santa Claus is able to navigate his sleigh around...