This week, editor David Velasco introduces “The Museum Revisited,” a special section from the Summer 2010 issue of Artforum. The Summer 2021 issue hits stands tomorrow.In 2010, Artforum’s then editor, Tim Griffin, dedicated his final issue to “The Museum Revisited,” gauging “just how tenuous our assumptions about art have become.” His tenure was defined by a surge in art’s audiences and in the perfunctory deployment of words like democracy, democratization, and participation, language that flirted with togetherness even as it obscured the specificity that makes togetherness matter.Tomorrow we