Imagine a curated overview of contemporary art from the United States titled “Before and After the Vietnam War.” Imagine the case not as a new direction for explorative scholarship but as the perpetuating, defining framework, over and over again. “Before and After Tiananmen,” Gallery 207 in the 2019 rehang of the permanent collection of the Museum of Modern Art, New York, presents established Chinese artists such as Xu Bing, Zhang Peili, Huang Yong Ping, and Song Dong in a sparse installation. Yet it registers not as a progressive move towards more inclusive and nuanced narratives of modern and postmodern art worldwide, but rather as a form of institutional gaslighting that raises deeper and stickier issues than the more manifest ills of exclusion or erasure. Reflecting a growing institutional recognition of heterogeneous global modernisms, it illustrates where that promise of progressive inclusivity falls short—and flat—if the historical framing remains uncontested, and situated knowledges are routinely overlooked. Presenting these alternative trajectories using the criteria and assumptions of the old canon—essentially treating them as outposts of western art history—will always miss the mark, limiting the discourse while purporting to expand it. It is telling that in most reviews of the new MoMA, …