Yes, but. Even if Markram’s Blue Brain manages to produce fleeting moments of ratty consciousness (which I accept it might), we still wouldn’t know how consciousness works.

Yes, but it may prove something equally, or even more important; that self aware consciousness can even be created by human means and not be some source of energy we have yet to discover.

Then again, If Markram builds a functioning human brain down to the molecular level that is capable of independent thought, the accomplishment, though spectacular will only prove that we are capable of simulating the human brain. And, if our organic brains operate exactly as Markram's digital counterpart, the line between simulation and real consciousness will be blurred.

This conclusion, if reached will not contradict the idea that even though we have evolved into the position of intellectual beings, with self aware consciousness, who is to say that we are nothing more than complex operations, capable of simulating character traits and emotions like sadness, happiness and the narcissism that has led us to believe we are something more than the sum of our parts, and that being consciously self aware is special and somehow connects us to the reason of our existence.