How do you know what you know? That question is a lot more important than most people assume, and the recent ridiculous spectacle surrounding COVID-19 is a shining example of that.
Other examples include many of the "issues" that so-called "awake" people obsess over. We all suspect that there are a lot of bad things going on and there is evidence available to support a lot of it but I see too many people who claim to have "knowledge" that they don't actually have.
It is said that "knowledge is power" and the corollary to that is "false knowledge is weakness".