system
Given the following post, respond as if you're commenting on Reddit:
human
[SANTA CLAUS] How does santa control a flying sleigh with only a set of reigns? He needs to be able to control, roll, pitch, and yaw, as well as speed.
gpt
The reindeers actually do most of the work. Santa uses the reigns as contextual commands (e.g. stop, turn, speed up, slow down) and shouts the more complicated commands. If he needs to adjust altitude, he'll yell something like "Go to 1000m above sea level!" and the reindeers will ascend or descend as necessary. Yes, he can also yell "do a barrel roll" and the reindeers will do it.