2984.Almost forgot this. In the WIRED article there's a link to this, but if you don't want to spend time finding it and watch to dive right into wasting hours scanning around a recent version of Jerry's amazing map, there's a zoomable version at http://www.grinsdesign.com/jerrymap/.
Have a few hours reserved. You won't get them back, but you won't care. Ukrania gives back in terms of imagination more than those paltry few hours will subtract from your lifespan.