system
Given the following post, respond as if you're commenting on Reddit:
human
[Alien] Judging by our current military and defense capabilities of all countries, how many Xenomorphs would it take to overrun the planet?
gpt
In one of the books a bus full of fanatics crashed through a research compound hell-bent on being impregnated by these monsters. Within months the planet was swarming with them and people were abandoning Earth. It started with about 20 people.