Stealing from my favorite retired blogger: "I can make you sad forever just by whispering a few words into your ear." The brain may be "just chemicals" but it'

Stealing from my favorite retired blogger: "I can make you sad forever just by whispering a few words into your ear." The brain may be "just chemicals" but it's an incredibly complex system of them, to the point where high level abstractions, like "psychology" can be useful. To expand on your model, I would argue that things described in this article, like your fundamental assumptions about yourself and the world are "part of your environment" and therefore part of something which you seem to agree can have an affect on your behavior.