&gt; And yet we&#x27;re conscious of something.<p>Prove it.<p>Susan Greenfield has a wonderfully challenging proposal for an implementation of consciousness. Paraphrasing from memory:<p>The entire functionality of consciousness is that, when the brain asks itself &quot;Am I conscious?&quot; the answer comes back &quot;Yes&quot;. And it does nothing else.<p>She wrote a short book called &#x27;Consciousness&#x27; about it, which I enjoyed. Such a refreshingly naughty idea.