Four days later it happens again: the telltale trail of 4s. Harrison’s monitor is gone for ever, thank God, and the gas it emitted when it died was apparently toxic so he can’t have another one. Sadly there are still emulators, clever bits of programming which take expensive hardware and make it behave like something cheap and old. You can get a stock ticker for your iPad which does it, and for some reason the bug has caught me, I’ve started using it. I still have all my other stuff going on, I’ve just got my tablet resting on a little stand and the cool green numbers drifting by like something from that Keanu movie.