Four years ago I attended a symposium at the Whitechapel Gallery and took a photo which I posted on my blog (here). Today I returned to see an exhibition by around 70 artists who have experimented with (mostly computer) technology and when I got home I decided to rework my photo, partly as an experiment, but also as an opportunity to incorporate a screenshot of the software program Flowfazer, which Todd Rundgren developed for Apple in 1990. IMHO it's far more appealing to the eye than many of the exhibits I saw in the gallery, but if it's up your street (pun intended), Electronic Superhighway (2016-1966) runs until 15 May. Flowfazer is available from the App Store for much less than the ticket price. More about Todd in another story.