"Santa has 31 hours of Christmas to work with, thanks to time zones [...] 91.8 million stops [...] sleigh is moving at 650 miles per second, 3,000 times the speed of sound. [...] The lead pair of reindeer will absorb 14.3 QUINTILLION joules of energy. Per second. Each. In short, they will burst into flame [...] Santa would be pinned to the back of his sleigh by 4,315,015 pounds of force." --Physics of Santa

(, Sun 23 Dec 2018, 18:21, Reply)
Santa is everywhere at once and essentially unobservable. This sounds less like a classical physics problem and more of a quantum mechanics problem.
(, Sun 23 Dec 2018, 19:43, Reply)
(, Sun 23 Dec 2018, 23:44, Reply)
(, Sun 23 Dec 2018, 20:51, Reply)