system
Given the following post, respond as if you're commenting on Reddit:
human
[General Fantasy] What is the best explanation you know for why mages can't wear much/any metal armor?
gpt
Type a sentence on a keyboard. Play a few bars of a song on a guitar. Now try again with leather gloves on.

Magic is the sublime art. There's no room for error. Screwing it up can be disasterous, and anything that gets in the way can get you killed.