On the Origin of Time

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A groundbreaking theory of the universe, developed over two decades by Stephen Hawking and Thomas Hertog, tackles the profound question of how the universe created conditions suitable for life. Hawking's earlier theory on the Big Bang faced challenges when it suggested a multiverse filled with bizarre universes, most incapable of supporting life. In the physics department at Cambridge, Hawking and Hertog dedicated themselves to crafting a new cosmological theory. Their research revealed that as they approached the Big Bang, physical laws began to transform and simplify, leading to the astonishing realization that these laws are not fixed but evolve alongside the universe. This journey is not just about scientific inquiry; it reflects a deep friendship forged in the pursuit of understanding fundamental questions about existence. The work delves into the extreme physics of black holes and incorporates insights from string theory. As Hawking's life drew to a close, the collaborators published a final paper introducing a radical perspective on the universe's origins, challenging conventional views of humanity's place in the cosmos. This book encapsulates the essence of their remarkable journey and discoveries.