Pausing, Hugo continued, "Now, let's liken Planet Earth to a stadium that can accommodate 50,000 people. If we take a single photo that contains everyone, the faces will be nothing more than dot pixels—we're not going to be identifying a thing, let alone finding someone we want in the mix.

"But if we set up the cameras at the center of the stadium and split it into, say, ten zones, and take photos from each zone before combining each into one big picture, the pixels are naturally ten times more