[throw4847285]

How do you know that? What do you know about prehistory? Nothing. You might as well be picturing the Flintstones in your head.

You're using broadly shared but totally unsubstantiated about past humans just to argue that things are good right now.

[threethirtytwo]

So you're claim is prehistoric humans are stupider? Also unsubstantiated. And insulting to prehistoric humans. That kind of behavior isn't allowed on HN. Don't disparage a group.