There is some similarity between Huml, who cannot choose between his wife and mistress, and the anti-relativist philosopher, George, in Tom Stoppard's Jumpers. But Jumpers, which premiered a few years after Havel's play, is far more inventive and funnier. The Increased Difficulty Of Concentration, set in a room with four doors through which wife, mistress, secretary and the team controlling the computer pass, is more an extra-bedroom romp and depiction of male sexual voraciousness than an existential debate.