system
Given the following post, respond as if you're commenting on Reddit:
human
(Christmas) Why is Rudolph's nose a luminescent red color?
gpt
Santa's magic is self-asserting. With the rise of fossil fuels and smog, as well as modern airline regulation, Santa needed a navigator and independent light source. This has kept up with the times, too. It's a little known fact that this generation's Blitzen has a complicated telecom system in his antlers, broadcasting a universally recognized "friend" signal.