Indeed, I was never aware of it, until Covid... millions of people believing in nano-bots raining from the clouds programmed by Bill Gates and many other unbelievable far fetched idea's, people just believed it like it was common knowledge.

And the false believes have far reaching impact, like polarization in society and deaths. Just today I read that Dutch vaccination rates are lower than ever [1]. Diseases like polio are no longer a 3rd world problem, but could revive in Europe as well.

[1] https://nos-nl.translate.goog/artikel/2512681-vaccinatiegraa...