It’s easy to be dumb. And the dumber you are, the more given you will tend to be to embracing conspiracy theories, which are Science/History/Politics for stupid people.
Conspiracy theories are popular because they allow lazy people to feel smarter than everybody else. They tell you that you can know the Hidden History of Our Time just by watching a Youtube video and without the hard work of study. They tell fearful people that they are wise to be terrified about Shadowy Forces instead of doing the hard work of learning courage, prudence, and wisdom. And they tell people with a raging inferiority complex that they are just as good as those people who have done the hard work of knowing what they are talking about.
So you can, for instance, waste your life chasing QANON, flat earthism, geocentrism, or this whack conspiracy theory that the Vatican is hiding the proof that Giants (as in Jack in the Beanstalk type giants) once roamed the earth.
(Fundamentalists like this one because it seems to them to “defend the Bible”–by which they mean “defend some Fundy theory about the Bible).
The Vatican is a popular target for such silliness. It’s theatrical. It’s foreign. It’s got Latin, incense, mystery and antiquity, plus cool art and a lot of Italian food. AND DID YOU KNOW THEY ACTUALLY BURY DEAD BODIES UNDER ST. PETER’S? LOOK IT UP, YOU FOOLS!!!!
But still and all, giants are not real. And the happy thing is that there are nerds out there who are eager to explain why. Because they did the hard work of learning why while the MAGA 2020 QANON SCIENCE IS STOOPID WAKE UP SHEEPLE COVID HOAX guys were out smoking dope behind the gym or sleeping through class like their president did.