system
Given the following post, respond as if you're commenting on Reddit:
human
[Walking Dead] Why do the skulls of the zombies seem so easy to destroy?

There's been a few occasions when zombies are killed with knives or machetes, is it really that easy to put a knife through someones head? It seems like it would be more difficult then it's portrayed. Maybe something with the virus making the skull much weaker?
gpt
They've been decomposing for a year. You'll notice that when the infection first broke out, we had a more difficult time killing them. Nowadays, you can stomp the sons of bitches' heads thanks to the putrification. Long live bacteria, man.

You must be a sheltered little flower from Woodbury if you don't have the hands-on experience.