The famous saying of a philosopher:

"I think, therefore I am."

Or something like that. I think this is the base of the belief that once a computer is 'smart enough', it will have a soul and conscience. It will be able to understand 'self' from the rest of the environment. Or maybe the understanding of self is the beginning of true intelligence.

If we cannot separate ourselves from our environment, how can we learn anything from the environment. One can say that the knowledge of self is built into our brain. But if that is the case, that means a baby would be born knowing self. If that is the case, why would it be so hard for babies to learn to use the word 'I'? And even as adults we still think about who we are, thus this post. If we still don't know what self is, then knowing self cannot be part of intelligence, at least not the same level as human.

So what is the definition of self? First we need to answer the question 'is self indivisable?' Before I attempt to answer this I need to think about if it is important. I think it is important, because if self is not divisable, then our physical body cannot be self. We can lose an arm or leg and still be ourselves, or can we? How tightly our selves is connected to the physical features we have?