Amazon has just opened their new cashier-less convenience store, Amazon Go, deep in the heart of Seattle's Belltown district and around the block from the Amazon Spheres. The folks at Mashable asked me to Amazon Go, so I Amazon Did. When I arrive, there's a line. No huge surprise there; it is opening day, after all, and people are curious. A light carnival atmosphere prevails, much as one might expect at the debut of, say, a Euro Disney or an Avatar: The Movie The Ride.