Korean supermarket opens virtual stores in subways. People pick products with their phones and the goods are delivered later. Never escape shopping!

We're still trying to figure out exactly how to read this chart, but it seems to have condensed the last 200 or so years of American history down into a very handy graphic. For example, if you want to know all the economic panics of the last two centuries, they are laid out very nicely for you. Remember..