The secret is to know your bullshit is bullshit and fervently believing it at the same time. Doublethink is not something Orwell invented, he just described it.

I remember watching "beyond thr curve" or whatever that netflix documentary was called. Me and my gorlfriend played a game where we tried to spot the idiot or the grifter. It's pretty funny, like: that guy just wants to build cool stuff and sell it to tgese people... Suddenly that guy pops up on that conference and said something like: hi, these are my kids, they are third generation flat earthers.

There was something about that sentence that was truly sad, and you could see some people probably thought tye same thing.