I dunno about mental models but what works good for idea generation is to bet against dumbasses. I pay attention when these guys talk, as it's usually a good idea to take the other side. It's kind of amazing how reliably wrong these guys are - like 15 years later they're wrong yet again.
And I apply this to myself too. Sometimes I will look at brokerage statements from 11 years ago to remind myself how dumb I was with some industry or company and go, well, I was a moron then and I'm probably the same moron now when it comes to this industry, so I guess I'll just stay away. That saved my ass a few times over the years