The human brain remains, for the most part, something of a mystery. However, that hasn't stopped researchers from attempting to untangle one of the most complicated objects we as a species have encountered thus far, although by the looks of this research, they might have their work cut out for them.
A recent collaborative effort between Google AI experts and Harvard researchers has managed to scan and map a single cubic millimetre of brain tissue, which created 1.4 petabytes of data in images alone (via Tom's Hardware).