Until the End of Time

Mind, Matter, and Our Search for Meaning in an Evolving Universe

Brian Greene

12 min read
1m 9s intro

Brief summary

In a universe where everything from stars to life itself is temporary, Until the End of Time reveals how we can find profound value in the here and now. By accepting that the cosmos has no inherent purpose, we can focus on creating our own meaning through science, art, and connection.

Who it's for

This book is for readers curious about the intersection of cosmology, physics, and the human search for meaning.

Until the End of Time

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Our Search for Meaning

Human beings live with a strange double awareness. We are made of ordinary matter, subject to the same physical laws as stars, stones, and dust, yet we also know that we will die. That knowledge gives human life a special tension. We build families, create ideas, make art, and search for truth partly because we want our brief lives to matter.

Modern science tells a story that is both grand and unsettling. The universe had a beginning, it changed over time, and it will continue changing long after we are gone. Stars burn out, planets fail, and even the largest structures in space are temporary. Life is not the permanent goal of the cosmos. It is a rare and fragile event that appears for a while between a simpler beginning and a colder future.

Two ideas shape this whole picture. The first is entropy, the tendency for useful energy to spread out and become less available for doing things. The second is evolution, the long process through which simple living systems become more complex. Together, these ideas help explain how a lifeless universe could eventually produce creatures able to ask where they came from and what it all means.

That leaves a deeply human question. If nothing lasts forever, what gives life value? The answer offered here is not that meaning is hidden somewhere outside us, waiting to be found. Meaning is something conscious beings create. Because the universe does not supply purpose for us, our moments of love, thought, discovery, and care become more important, not less.

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About the author

Brian Greene

Brian Greene is an American theoretical physicist and professor of physics and mathematics at Columbia University, where he is the director of the Center for Theoretical Physics. A leading researcher in string theory, his contributions include the co-discovery of mirror symmetry and the discovery of spatial topology change. Greene is also a prominent popularizer of science and co-founder of the World Science Festival.

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