system
Given the following post, respond as if you're commenting on Reddit:
human
[LOTR/Hobbit] Is there a legitimate reason why hobbits can throw stones/small rocks so hard they kill orcs?

Is there any evidence to say why (e.g a unique trait or something to do with their build), or is it just Peter Jackson doing his thing?
gpt
Couple of things,

Firstly, we don't know that the orcs are dying, just that they're being knocked over. They could be dead, they could be unconscious, they could be dazed and disoriented.

Secondly, the Hobbits are throwing (human, not hobbit) fist-sized rocks from 15-20 feet in the air. Those things are damned heavy and they're falling from a second or third story window. Even without being thrown those things could easily kill or at least severely wound your average human if they hit you in the head. Depending on how the orcs' helmets are padded there's a chance the damage would be minimal, but the orcs are not known for their care in crafting equipment.