Bear in mind they are not using an extracted 3D model of a cortical column, but "merely" a mush up of known neurons and known statistical properties of cortical columns.
In other words, we are far from simulating the brain.
"Markram believes that with the state of technology today, it is possible to build an entire rat's neocortex, which is the next phase of the Blue Brain project, due to begin next year. From there, it's cats, then monkeys and finally, a human brain."
And read its beautiful answer: INSUFFICIENT DATA FOR MEANINGFUL ANSWER