Counterintuitive Facts (80): Why Did Humans Invent Language? To Lie Better

I. We usually think language was invented for coordinated hunting: "Hey, there's a lion over there." "Flank from the left!" This is noble. But it doesn't explain one problem: Why do humans have vocabularies of tens of thousands of words, while hunting only needs a few dozen signals? Monkeys can also use simple calls to warn companions "there's a snake." No grammar needed. No complex sentences. Human language complexity far exceeds practical needs.

II. Anthropologist Robin Dunbar (the one who proposed "Dunbar's Number" 150) believes: Language evolved from monkey "grooming." This conclusion sounds strange, but the logic is solid.

III. Monkeys and apes establish social bonds through mutual Grooming. "I spend time grooming you, shows I value you. Next time you'll fight for me." Grooming is a s