Artificial intelligence is one of humankind's greatest and oldest ambitions.
The quest for non-human intelligence has captivated magicians, astrologers and mystics for as long as such professions have existed, but it took Aristotle to kick things off properly. That was in the third century BC, and 2,300 years later we still haven't cracked the problem. Part of the trouble is that nobody knows what AI is . In fact, nobody even knows what I is. While consciousness is something we all have and enjoy every second of our waking lives, nobody knows how it all really works.