I have a family member that was on the schizo scale. Supposedly it was triggered in the military and he received disability. I have definite DNA that makes me susceptible but was never triggered.
I even have DNA that has been shown to cause people to go nuts later in life if they have early trauma. Of course, these studies are hard to prove definitively.
What I am getting at here is if I was a Mad Scientist delving into things like the CIA MK Ultra program or anything devious such as that....I would look at how to trigger those mentally ill genes.
Slightly off topic—but I think the Democratic ranting against Trump supporters (false accusations of every imaginable type) is an attempt to “trigger” a hostile/violent reactions from borderline personalities on the right.
For “normal” folks the Democratic rants come across as bizarre and kooky—so “normal” folks cannot be the target audience.