But always there was a spirit of playfulness, a certain sparkle, keeping pace with Stoppard’s displays of erudition. Seldom has a state of confusion been a more pleasurable place to be. Stoppard married dazzling wordplay, intricate plots, and philosophical depth in plays like his breakthrough work, “Rosencrantz & Guildenstern Are Dead’’ (1966), “Jumpers’’ (1972), “Travesties”(1974), “Night and Day’’ (1978), “Dogg’s Hamlet, Cahoot’s Macbeth’’ (1979), “The Real Thing”(1982), “Hapgood“(1988), ”Arcadia” (1993), “The Coast of Utopia” (2002), and “Leopoldstadt” (2020). He was often described as the greatest living English-language playwright. Total agreement on that in this corner. What was striking was how...