Rufus Butler Seder is an optical genius whose first significant invention was Lifetiles, glass-walled murals that appear to come to life when the viewer walks by. He s installed them at the Smithsonian, SeaWorld, Union Station, and other museums, aquariums, train stations, and ocean liners around the world. Next came Scanimation, and his company EyeThink, Inc., a business that produces a line of toys and gifts using technologies he s invented. Mr. Seder lives in Boston, Massachusetts.