The first time a PC seemed magical to me was when it dozed off and colourful lines twisted across its screen. I'd launch Windows 3.1 just to watch screensavers, marvelling at Mystify and staring at Starfield. How wonderful that our computer needed to dream as preventative medicine! I relived this today with a new collection of customisable 3D screensavers, watching shoals of fish, taking a road trip through a museum of global electricity pylons, watching housing estates rise and fall, and seeing so many swirly colours.