Since Copernicus, science has moved humanity from the center of Creation. However, The Anthropic Cosmological Principle suggests that intelligent observers determine the Universe’s structure. Its radical form asserts that intelligent life must emerge and never die out. Cosmologists John Barrow and Frank Tipler explore the Principle’s implications, from the definition of life to quantum theory. Covering fields like philosophy and astrophysics, this work connects the existence of life with the vast cosmos, engaging a broad audience.