system
Given the following post, respond as if you're commenting on Reddit:
human
[Game of Thrones] How do humans and animals survive above The Wall if its frozen all the time?

If it is always (or even mostly) frozen, what vegetation could provide enough nourishment for the animals, humans and giants to survive on.  Even during Summer it seems frozen, so how could they possibly put enough food away to survive the Winter years?  And if they live off the sea, then aren't they able enough sailors to just sail around The Wall?
gpt
The stories they tell of snarks and grumpkins make people think that the lands north of the Wall are just a frozen wasteland, but this is not true at all. Immediately north of the Wall is the vast Haunted Forest, which really is not any different from the Wolf's Wood north and west of Winterfell. It is colder, certainly, but in the summer it is as green as anywhere in Westeros. Farther north, in the Frostfangs, it is a different story, and the snow on those forbidding heights persists all the year. And beyond the Frostfangs, in the Land of Always Winter ... well, the name speaks for itself, and no Ranger of the Night's Watch has travelled that far in living memory.

During the winter, though, it is all that your worst nightmares would imagine. Cold and frozen, the ground will be buried under feet of snow and drifts mounded 50 feet high until the spring comes. How do animals survive? The same way the Wildlings so, by scavenging what they can and surviving another day. What if the winter lasts for years? Then they starve, simple as that.

And as for the Wildlings, while they may be fierce fighters, and no more or less intelligent than any other people, they are savages. They do not build - their homes are made of logs and mud, their weapons are bone and stone, and occasionally bronze. If you ever meet a Wildling with iron or steel, then you are meeting a Wildling who killed a Ranger. They do indeed sail around to bypass Eastwatch-by-the-Sea and raid the lands of the Umbers and the Karstarks, but they travel in kayaks and canoes. They do not know how to build galleys, or have the knowledge to sail the deep waters.