This is a unique day of organizing for many reasons, not least of which is the fact that it centers on a number. It’s also unique for its wildly large scale. We’re combining those two things with one new tool we’ve been calling planet-scale Scrabble. In a few cities citizens are making enormous 3s, and in others giant 5s, and in others vast 0s. The images will need to be combined by tv crews and newspaper editors to make sense. Anyway, the first big 3 just rolled in from Auckland in New Zealand (good morning down under!). Note the sheer number of people stretched out across this football pitch. We’ll bring you other pieces of the puzzle as they emerge over the next 36 hours!