Side note to the previous post: In doing some quick verification of a thing or two, I stumbled upon perhaps the weirdest file format ever created: The .WWF format, which is supported by the World Wildlife Fund’s German chapter. Here’s what it is: It’s a PDF file that you can’t print, in an effort to save paper. Because clearly this is an effective way to solve the problem of paper waste. Guess the Google drone thing is another attempt by the WWF to be on top of random technological trends.