How To Know You’re In a Mass Hysteria Bubble Posted August 17th, 2017 @ 12:36pm History is full of examples of Mass Hysterias . They happen fairly often. The cool thing about mass hysterias is that you don’t know when you are in one. But sometimes the people who are not experiencing the mass hysteria can recognize when others are experiencing one, if they know what to look for. I’ll teach you what to look for. A mass hysteria happens when the public gets a wrong idea about something that has st...