Final answer:
"Brave New World" which is a satirical fantasy set in a future society with a caste system determined by genetically engineered intelligence levels.
Step-by-step explanation:
"Brave New World". This novel, authored by Aldous Huxley, is a satirical fantasy set in a futuristic society where individuals are conditioned prenatally and placed into a rigid caste system. It presents a world where science has been used to establish a new social order, with the intention of achieving a stable and content society.
The concept of scientifically graded intelligence plays a crucial role in the categorization of people into different societal levels. With its sharp commentary on social engineering, the use of technology in societal control, and the sacrifice of individual freedoms for collective stability, "Brave New World" remains a powerful work in the dystopian and satirical genre.