Some myths and conspiracy theories are dangerously close to being believed by the majority of people: https://www.npr.org/2020/12/30/951095644/even-if-its-bonk

Some myths and conspiracy theories are dangerously close to being believed by the majority of people: https://www.npr.org/2020/12/30/951095644/even-if-its-bonkers-poll-finds-many-believe-qanon-and-other-conspiracy-theories https://www.npr.org/2020/12/30/951095644/even-if-its-bonkers... so in the end you have to anchor this to some expertise and grounded-in-reality judgement. For example, the majority in the aforementioned poll believed that COVID-19 was created in a lab in China. And to be honest, an average person really has no way of truly knowing this. They're not virologists or spies. They can only judge based on a gut feeling whether China is/isn't evil, and that is likely based on other things they've heard, which may include rumors, propaganda and Bond movies.