It's no wonder our prehistoric ancestors went wandering around hooting, hollering, randomly screaming and yelling all the time. They kept hearing all these voices from the future asking them questions like "why is my life bad", "how do I make her love me", "how do we find the vietcong", "why is America fighting this war", "will putin start nuclear war", "when will Jesus return" ...
Run away in fear until you gather enough of a group so that you can all turn around and kill and destroy whoever or whatever scared you in the first place.
Keep doing that for 200,000 years and you end up with a nuclear war
