“Arcadia” is a splendid Rubik’s Cube, as playwright Tom Stoppard twists its many facets with amazing sleight of hand, letting the audience put it all together — or not. Running almost three hours and encompassing a huge variety of esoteric subjects — in two periods separated by 200 years, sometimes with characters from both eras intermingling on the same stage — “Arcadia” is not cushy entertainment. Read More