Brianandcamera created that illustration to show the resolution difference between the new Phase One 101 Megapixel Sony sensor and the rest of the digital world. Brian writes:
I had a bit of trouble wrapping my head around it. I currently shoot on a 24MP body and the difference between their old camera and the new (80 -> 100) was basically my camera. I wanted a frame of reference, so I dug up some filesize information and created the guide below. I grabbed one of the 100MP tiffs and compared the dimensions:
There is also a massive original non resized version posted by PetaPixel on Flickr.