THE MASSIVE AMOUNT of information, a virtual Bibliotheca Alexandrina, available to us through free apps easily downloaded to our smartphones marks either a new age of enlightenment or a new age of everybody’s up in my business. I’ll choose to think of it as the former, being the eternal optimist that I am. For instance, my Runtastic Road Bike app, which I used to clock the ride my wife and I took this morning, records more information than I can use, and even plotted our route, viewable on four different maps (top to bottom below, Google Map, Satellite view, Open Street Map, and Open Cycle Map). But the only data I’m interested in at the moment is the last number in the vertical box at right, 826 calories. It means I can have a brownie after dinner.