The 3D map covers a volume of about one cubic millimetre, one-millionth of a whole brain, and contains roughly 57,000 cells and 150 million synapses — the connections between neurons. It incorporates a colossal 1.4 petabytes of data.
Assuming this means the total data of the map is 1.4 petabytes. Crazy to think that mapping of the entire brain will probably happen within the next century.