Andy Warhol's £6m selfie and how we can all now be famous for 15 minutes

Possible to isolate things that cause people to stop caring about an online image: Studies

One day in 1963, Andy Warhol walked into a New York photobooth and took what have become the world’s most famous selfies. One of these trailblazing self-portraits has just been sold at a Sotheby’s auction for just over £6m.

These selfies perfectly suited Warhol’s vision of the pop art era of the late 1950s and 1960s – they are quintessentially all-American, democratic and mechanical. Though photobooth pictures could not go viral like social media pictures can now, the use of a photobooth to make art was, in 1963, fiercely innovative and added to the aura of a technical