I’m actually very curious how do such fads begin? Sales? What’s there to sell if you recommend polyphasic sleep? Or just harvest attention of clueless morons a

I’m actually very curious how do such fads begin? Sales? What’s there to sell if you recommend polyphasic sleep? Or just harvest attention of clueless morons and act as some health guru? Such a weird phenomena, and so common, I feel moronical for not understanding what drives it.