system
Given the following post, respond as if you're commenting on Reddit:
human
[Snowpiercer] I’ve lost my arm. What happens next?

Passengers in the tail-end of the train are punished by having their arms frozen off. Their bare arm is coated in gel or water, a clamp (?) is placed around their bicep and their arm is pushed through a portal where it’s exposed to temperatures of -120 degrees centigrade. After a couple of minutes their arm is pulled back inside and shattered with a hammer. There are lots of one-armed survivors on the train- I want to know how the human body would react and heal to this trauma. Is it possible that you can freeze a limb without causing significant damage to the rest of the body? There’s no healthcare in the back of the train, how would they deal with symptoms like shock?

It’s definitely an effective deterrent because it’s been giving me nightmares all week.
gpt
> Is it possible that you can freeze a limb without causing significant damage to the rest of the body

Apparently. 


> how would they deal with symptoms like shock?

Survive as best as possible. This punishment is meant to dissuade people. If the person dies well... more room for everyone else.