Just an idle thought I've been mulling over at times: I wonder if what seems to be an increasing prevalence of borderline personality disorder (or at least 'splitting') thinking patterns is a result of significant cognitive dissonance (difficulty of processing self-contradicting information/beliefs), and thus a person becoming more rash in trying to rationalize things in a black/white dichotomy, just to avoid any uncertainty or self-doubt, rather than taking a more 'balanced' or 'gray' opinion on something.
In other words, I wonder if people being exposed to 'news'/info/vocabulary that contradicts itself, and still choose to buy into it, are more susceptible to BPD.