‘That other use of the term “going viral”, as a goal for amplifying the spread of ideas, actions or witty cat memes via social media. Photograph: iStock

In May of last year, Chinese artist Guo O Dong made headlines when he sold a simple black Samsung computer to an undisclosed buyer for more than $1.3 (...)

Detail from Rest Energy (1980), by Marina Abramovic and Ulay. Copyright Marina Abramovic and Ulay; courtesy the Sean Kelly Gallery, New York

What We Call Love: From Surrealism to Now   Works by modern and contemporary artists, including Dalí, Duchamp, Giacometti, Oppenheim, Pica(...)

Disappear With Me: Alec Soth’s Snapchat images, which vanish from your phone almost as soon as you receive them, have sold out. Photograph: Jenn Ackerman/New York Times

It’s a First World problem that is insignificant in the face of life’s major traumas, but a defining malady among those who have enough is the nagging(...)

Kyoto lidded vase, mark of Namikawa Yasuyuki, circa 1890. Copyright Victoria and Albert Museum, London

Seven Treasures Chester Beatty Library, Dublin Castle *****   Cloisonné is an ancient enamelling technique. As a process, the(...)