We don't have to know how our brain works to create machines that are conscious. All that we have to teach them is how to _learn_, that's all. We too have developed being conscious over millions of years, by learning, in- and output of information. Just create something with 120 billions of transistors and give it the ability to learn, and in some time you'll have Human Species V. 2.00

And remember, 500 years ago everybody was absolutely sure that flying would never be possible