LONDON, ENGLAND - OCTOBER 13:  An employee poses next an installation by U.S artist Richard Tuttle entitled 'I Don't Know. The Weave Of Textile Language' in the Turbine Hall of the Tate Modern gallery on October 13, 2014 in London, England. Forming part of a joint exhibition with the Whitechapel Gallery in east London it is the largest work ever created by Tuttle and is due to be exhibited from October 14 2014 to April 6 2015.  (Photo by Carl Court/Getty Images)