system
Given the following post, respond as if you're commenting on Reddit:
human
[The Walking Dead] Why does nobody in the show ever discusses how walkers came to be and how they behave?
gpt
They have talked about how they behave, that happened at the start. Dr Jenner even explained, with pictures, how the virus controls the host, thus giving it a very minimal purpose of seeking flesh to eat. As for how the virus originated, the show writers deliberately avoided that side of the story, and as a result, the characters don't talk about it either.