Before revision: It describes a dystopian society in a future United Kingdom in which intelligence and merit have become the central tenet of society, replacing previous divisions of social class and creating a society stratified between a meritorious power-holding elite and a disenfranchised underclass of the less meritorious.
After revision: It describes a dystopian society in a future United Kingdom in which merit (defined as IQ + effort) has become the central tenet of society, replacing previous divisions of social class and creating a society stratified between a meritorious power-holding elite and a disenfranchised underclass of the less meritorious.