As human beings, we know what self-consciousness is. We experience it all the time. We experience being aware of ourselves as separate from other things.

Self-consciousness is rooted in the experience of an inner and outer world. The inner world being that which I call “myself” and the outer world the “not me.” The inner world is what we commonly call the “self.” If we were unable to distinguish between inner and outer, between self and not-self, then we could have no concept of  self, and by extension, no self-consciousness.

Self-consciousness also implies a consciousness that is aware of the inner (self) and the outer worlds. Jung calls this consciousness the Self (capitalized first letter). This is the agent of self-consciousness. The Self is aware, or conscious of, the self.

As stated previously, we know about self-consciousness from our own subjective experience. We may assume that everyone’s experience of consciousness is pretty much the same as our own. The truth is though, that we really don’t  know whether this is the case or not. We make assumptions about other people’s consciousness from what we perceive of them through their actions.

Just as there are levels of consciousness or awareness, there are also levels of self-consciousness. The ancient maxim “Know Thyself” inscribed  in the forecourt of the Temple of Apollo at Delphi, refers to the strengthening of this ability.

But can computers be “self-conscious?”