system
Given the following post, respond as if you're commenting on Reddit:
human
[ATLA] How did Zaheer, a non bender, get so good at airbending in a few weeks?

Don't most people have to train for decades?
gpt
Zaheer was a fanatic for Airbending culture and studied several historical masters in-depth before he actually became a bender. He was an accomplished martial artist and knew the forms needed, with a wealth of time on his hands to practice while incarcerated. Essentially he had all the knowledge of the theory and the necessary physical fitness, the last piece of the puzzle was the ability itself.