The thing about self-consciously revolutionary art, however, is that it rarely has a particularly long shelf-life. Perhaps this remains most obvious in pieces that are pragmatically revolutionary; demonstration posters, graffiti, propaganda. Things like Guerrilla Girls and posters of Johnson and Trump’s lovechild are destined – designed, even – to become quickly dated.
The mutability of movements is an inevitability. It’s the constantly self-renewing process within art that ensures it can continue to fulfil its purpose of...