The Tate’s grand rehang amounts to an admission that it was a mistake, when the museum first opened in 2000, to abandon all reliance on chronology in organizing the collection. And interestingly, now that some semblance of linear time has been restored, Rachel Campbell-Johnston says that we can finally see how non-linear the art of the last 100 years has actually been. “The narrative of art history, [the re-hung collection] reminds you, is seldom a single linear progression. Modernism is not a single movement but a struggling protean force.”