Why did Denis Diderot wrote Jacques the fatalist?

Denis Diderot wrote "Jacques the Fatalist" to explore themes of free will, determinism, and the nature of human existence. Through the dialogue between Jacques and his master, Diderot critiques societal norms and philosophical doctrines of his time, particularly the idea of fate versus choice. The novel also reflects Diderot's interest in the complexity of human relationships and the randomness of life events, ultimately challenging readers to consider the implications of their own beliefs about destiny and agency.