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.