The unconscious envisioned by Freud was, in the words of a group of neuroscientists, hot and wet; it seethed with lust and anger; it was hallucinatory, primitive, and irrational, while the new unconscious is kinder and gentler than that and more reality bound. In the new view, mental processes are thought to be unconscious because there are portions of the mind that are inaccessible to consciousness due to the architecture of the brain, rather than because they have been subject to motivational forces like repression. The inaccessibility of the new unconscious is not considered to be a defense mechanism, or unhealthy. It is considered normal. ~~~ Subliminal: How your unconscious rules your behavior by Leonard Mlodinow