Homo Deus

Homo Deus is a sweeping historical and philosophical inquiry into the future of humanity. Harari argues that having conquered famine, plague, and war, humankind now faces new challenges: the rise of artificial intelligence, the possibility of biological engineering, and the emergence of "dataism" as a new religion that treats data and algorithms as supreme.

The book traces how humanism—the belief in human uniqueness and agency—has dominated modern thought, but suggests this worldview is being displaced by technological systems that may render individual human choice and consciousness obsolete. Harari examines how biotechnology and artificial intelligence could fundamentally alter what it means to be human, potentially creating a post-human future where algorithms know us better than we know ourselves.

Published in 2015, Homo Deus became a global bestseller and sparked widespread debate about technological determinism, human agency, and the ethical implications of AI and genetic engineering. The book influenced discourse in technology, philosophy, and policy circles, though it has also drawn criticism for its speculative leaps and technological pessimism.