system
Given the following post, respond as if you're commenting on Reddit:
human
[ATLA / LOK] What is the life expectancy in Avatar universe?

In real world life expectancy is about 70-80 (it's impressive to make it to your 100s), but in Avatar: The Last Airbender there are so many old people who seem to be at their prime despite their old age. Kyoshi and Guru Pathik even lived up to be over 100y old, Kyoshi even making it to her 200s. What do you think about average life expectancy in Avatar universe and does bending affect it?
gpt
I think the life expectancy is pretty similar to ours, there’s no reason to think otherwise really. You’re choosing examples of exceptional people with apparent superhuman connections to the universe. One an Avatar, an Avatar who learned a special technique to lengthen her life, and debatably the most spiritually attuned person we see during the war. 

That’s sort of like asking “how fast should a human be expected to run a hundred meters,” and using Usain Bolt as a point of reference. Your idea for who is normal is going to be heavily skewed by the fastest person to ever do so.