In his travels he happened upon the idea of including portapotties in his pictures.
The results are uneven, the aesthetic varies in the samples, but the effect is mostly appealing. I’m not sure about the importance of the rationale that the pottie precedes development, though in many cases that’s true.
For me the pictures are a cross between Where’s Waldo and deep thinking. My deepest thought? Before these things were all over the place, where did we “go?”
The Behold blog featured his pictures on Slate.