Ai Weiwei,Forever, 2014, Palazzo Cavalli-Franchetti, VeniceCourtesy of Berengo Studio and Lisson Gallery   Already the Dada avant guarde – in particolar Duchamp Ready Made – with an irreverent and liberating approach towards institutional art redefined the meaning of objects and images rejecting their original context and function. Then, in the late 1950s, New Dada and Nouveaux Réalisme artists revisited the notion of Ready Made reappropriating everything society had to offer. So, not just products, but also waste. With a new “perceptive approach to reality” (1) the former exalted the economic boom of those years transforming waste into works of art. In this way, ordinary waste and objects became art material in their own right. And nowadays ar...