One of Evanston’s most creative artists said last week that she would like to figure out an art project to say something about the moment. Art is gorgeous, breath-taking, inspiring, interpretive, paradoxical, challenging — and sly. Evanston artist Julie Cowan’s series on Abraham Lincoln includes a fragment of his writing on slavery:July 1, 1854: Fragment on Slavery: “If A can prove however conclusively, that he may of right enslave B, why may not B snatch the same argument and prove that he may enslave A? Here in Evanston, and in many other places in America, the “moment” seems both frenetic and paralyzing. Art may not be able to explain it all, but it can interpret our fears and help us address this chaos that is no longer slouching toward Evanston, but is already here.