In the theatre department’s latest production, a mysterious electric fallout has ended modern life as we know it, yet “The Simpsons” — America’s longest-running animated show and the new bedrock of post-apocalyptic civilization — endures. “Mr. Burns, a Post-Electric Play” debuts Feb. 16 in the Stieren Theatre. The play, written by modern playwright Anne Washburn and first premiered in 2012, is supposed to incorporate a lot of modern elements into the show, reaching out to a wide...