system
Given the following post, respond as if you're commenting on Reddit:
human
[Snowpiercer] SPOILERS

So does humanity go extinct at the end of the movie? Because 2 people are not enough to repopulate the human race,and its been said that everyone else on the planet is dead.
gpt
Everything in the movie up to that point - humanity trying to stop global warming, Wilford building the train, Minsoo's decade-long hoarding of explosives, the rear passengers doing what they had to do to survive, the long string of failed rebellions - is an unbroken chain of failure and corruption. But it is also a tale of unlikely redemptions, of love and hope, of people refusing to accept their end, people fighting not just for themselves but for each other. 

That polar bear at the end of the movie is a living restatement of the movie's premise. It is proof that life is possible, that there is hope - but the embodiment of hope is also the embodiment of terrible danger. (That bear had to be fucking pumped to have a trainful of tenderized humans and frozen steaks delivered to it.) 

Are there only two survivors? Are they probably doomed? Is humanity itself doomed? Any answer but "yes" would betray Snowpiercer's integrity. 

But will they fight, to the very end? Will they try to survive, and more than that to remain human? Will they hope, and love, and fight for each other? Again - Snowpiercer must say "yes." 

I fucking LOVE that movie.