clipped from: www.edge.org   
SELF AWARENESS: THE LAST FRONTIER

One of the last remaining problems in science is the riddle of consciousness. The human brain—a mere lump of jelly inside your cranial vault—can contemplate the vastness of interstellar space and grapple with concepts such as zero and infinity. Even more remarkably it can ask disquieting questions about the meaning of its own existence. "Who am I" is arguably the most fundamental of all questions.

It really breaks down into two problems—the problem of qualia and the problem of the self

I have every confidence that the problem of self will be solved within the lifetimes of most readers of this essay. But not qualia.

Neurological conditions have shown that the self is not the monolithic entity it believes itself to be. It seems to consist of many components each of which can be studied individually, and the notion of one unitary self may well be an illusion

if so we need to ask how the illusion arises; was it an adaptation acquired through natural selection?