Some of the worlds greatest thinkers and innovators suffered social execution from their peers and were deeply depressed.
Rather, for these lonely people, conspiracy theories are how they project their own unmet emotional needs outward onto the perceived world around them -- as a coping strategy. They need to feel like they belong and are relevant in the world. This leads them to harbor resentment toward the rest of the world whom they perceive to be in league with an amorphous "them". The conspiracist's belief that he possesses "secret knowledge" about the world fulfills his needs for belonging and relevance by making him feel as if he is part of an in-group superior to the one he perceives to be alienating him[1].
But why do this through "secret knowledge"? Usually this is the conspiracy theorist's way of coping with some inexplicable world-changing event like 9/11, the COVID-19 pandemic, or the loss of their chosen political candidate in an election; they need to "know" why immediately, but cannot, and therefore move straight from the "thinking" stage (which requires holding uncertainty and multiple possible explanations) into the "knowing" stage (which is a kind of faith-based certainty about the world)[2][3].
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1. https://www.apa.org/pubs/journals/releases/bul-bul0000392.pd...
2. https://overcast.fm/+CuhudQ56w
3. https://psmag.com/social-justice/thinking-vs-knowing-when-fa...
While I'm at it I might just as well recommend David Miano's YouTube channel World of Antiquity, here's a link: https://www.youtube.com/watch?v=1dHNq8SURTU to his video "LIES told by Atlantis proponents" (accidentally had this tab open. Coincidendence!??!! I don't think so!).
BTW another red flag that occurs across all these Ancient and/or Alien Civilization fringe theories is that the argumentation of the believers disparages certain groups of people, mostly non-Europeans—"they could've never achieved this level of precision, they were much too primitive".
> move straight from the "thinking" stage [...] into the "knowing" stage
I've seen this time and again, people who talk, argue and act as if it's enough for a thought to cross the mind, and it's already almost taken for granted, accepted as fact.
So you might identify more crazy stuff in autistic people who don't align with the herd, but if you sum up all the crazy stuff the herds thinks that is roughly on a similar level to an average autistic person, just that its all aligned in a thought bubble so people don't see it unless you look outside your bubble.
To illustrate, do you think a devout democrat feels an average autistic person or a republican believe in more dumb stuff? And vice versa. Regardless which of those sides are right it still adds up to a ton of crazy shit for the average herd.