Now I'm not sure what we're talking about. If you postulate that brains can be "cooked" and "uncooked" in response to new information, doesn't "cooked" just mean "persuaded"? I definitely agree that my policy preferences would be more dominant if people spent more time ingesting the good arguments and good evidence that convinced me to hold them.
That's fair -- "cooked" does imply an increase in entropy that can't be reversed. I think it sadly is irreversible in some people, but many others can be brought back (you're already starting to see a backlash to Trump).
Being exposed to the arguments over and over, repeatedly, probably matters more than their quality. That's what I was going for with "cooked", since "persuaded" isn't quite the right word for it.