Short for Woo-Woo
https://www.urbandictionary.com/define.php?term=woo-woo
I think it is both natural and created. And it is getting worse. Our brains naturally fill in gaps of perception, knowledge, or understanding. But there is big money filling gaps with garbage. Religions, of course, have done this since forever. Then books. And radio and TV. Now the internet. Guys like Alex Jones do it for the cash. But I do think that promotion of crap can be used by others to dumb us down. Or does that sound like a conspiracy theory?