They called the painter Cringer990 on the internet because nobody knew his real name. His work travelled like a rumor: downloaded, reposted, blurred, remixed into gifs and grief. Galleries put up placards with cautious curations; critics spoke of a nostalgic cruelty in the brushwork. The rumor attached itself to a line—Art 42—a cataloging joke at first. Forty-one other works supposedly existed, each one a map of what you’d almost remembered and then forgot. Art 42, though, had a habit of staying with people.