One of the most important technological inventions is the mobile phone, complete with its photographic accessories. That science now drives art and politics.

London’s Saatchi Gallery is planning an exhibition of the early impact of The Selfie. The pictures appear to be a long way from the self-portraits of Rembrandt and van Gogh._93771688_goghrembrandtcomp.jpg

Now there are the politicians David Cameron, Helle Schmidt and Barack Obama:


(Getty Images)

the British astronaut at the International Space Station:


(Tim Peake)

and many celebrants at the Oscars:


(Bradley Cooper).