Imagine having an alien encounter, but the first person who makes contact has no idea what the fuck these creatures are or why they’re in her backyard, and when they try to approach her she just gives the first one a brisk open palm slap across what she figures must be this creature’s face. And the alien just goes “oh woah that’s sharp. I like it.” And they start looking for more people who do that.
Gradually they start mapping out which humans are most likely to just flat-out slap them, and figuring out how much of it is nature vs. nurture, start introducing the hardest slappers to each other, with a surprisingly good success rates as the kind of people who would be down to slap an alien life form are also the kind of people who are down shag somebody who would also do shit like that. While some people insist that these “breeding programs” are dehumanising and an insult to human dignity, the people who would slap an alien without hesitation are treating it like a free matchmaking service, that works better for them than Tinder anyway.
Eventually the descendants of the most powerful slappers have developed into a distinct new type of human, who have honed their slapping skills and capabilities to perfection, and any alien who isn’t experienced with getting slapped by humans could no longer handle it, and one brisk smack would just make their head explode.
And that’s pretty much what humans did to chili.