Where does that “10% of photographs ever taken were taken in the last 12 months” meme come from? I can’t find anything that really explains how this was worked out. It reminds me of the debunked “more people alive now than have ever lived” story, though a little more plausible, I guess? There’s this: http://blog.1000memories.com/94-number-of-photos-ever-taken-digital-and-analog-in-shoebox
and the theory behind the analog estimates makes sense, but how could anyone know how many digital photographs have been taken?