Wtf are you talking about "nobody knows". You know we built this shit right? There's so many papers about this, mathematical models, open source software you can play around with yourself.
Don't fall for the AI company marketing, we know exactly how these things work. As for not having a theory about intelligence or thinking? You might not have any, but there's whole fields of research out there about these subjects. Just because there isn't a 30 sec explanation layman can understand, doesn't mean we know a heck of a lot about the subject.
You sound like the tides come in tides go out, nobody can explain that dude right now.