Every moment is as real as every other. Every ‘now,’ when you say, ‘This is the real moment,’ is as real as every other ‘now’ – and therefore all the moments are just out there. Just as every location in space is out there, I think every moment in time is out there, too.
BRIAN GREENEThe real question is whether all your pondering and analyses will convince you that life is worth living. That’s what it all comes down to.
More Brian Greene Quotes
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The real question is whether all your pondering and analyses will convince you that life is worth living. That’s what it all comes down to.
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I was holding [my four-year-old daughter] and I said, ‘Sophia, I love you more than anything in the universe.’ And she turned to me and said, ‘Daddy, universe or multiverse?’
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String theory envisions a multiverse in which our universe is one slice of bread in a big cosmic loaf. The other slices would be displaced from ours in some extra dimension of space.
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You should never be surprised by or feel the need to explain why any physical system is in a high entropy state.
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I love it when real science finds a home in a fictional setting, where you take some real core idea of science and weave it through a fictional narrative in order to bring it to life, the way stories can. That’s my favorite thing.
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Art makes us human, music makes us human, and I deeply feel that science makes us human.
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Sometimes attaining the deepest familiarity with a question is our best substitute for actually having the answer.
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Our eyes only see the big dimensions, but beyond those there are others that escape detection because they are so small.
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Instead, a faint mist of light will fall for eternity through an ever colder and quieter cosmos.
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In the far, far future, essentially all matter will have returned to energy. But because of the enormous expansion of space, this energy will be spread so thinly that it will hardly ever convert back to even the lightest particles of matter.
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To tell you the truth, I’ve never met anybody who can envision more than three dimensions. There are some who claim they can, and maybe they can; it’s hard to say.
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For most people, the major hurdle in grasping modern insights into the nature of the universe is that these developments are usually phrased using mathematics.
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Assessing existence while failing to embrace the insights of modern physics would be like wrestling in the dark with an unknown opponent.
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And putting together the probabilities of quantum mechanics with the certainty of general relativity, that’s been the big challenge and that’s why we have been excited about string theory, as it’s one of the only approaches that can put it together.
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A watch worn by a particle of light would not tick at all. Light realizes the dreams of Ponce de Leon and the cosmetics industry: it doesn’t age.
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String theory is the most developed theory with the capacity to unite general relativity and quantum mechanics in a consistent manner.
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…things are the way they are in our universe because if they weren’t, we wouldn’t be here to notice.
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Science is a way of life. Science is a perspective. Science is the process that takes us from confusion to understanding in a manner that’s precise, predictive and reliable – a transformation, for those lucky enough to experience it, that is empowering and emotional.
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The idea that there could be other universes out there is really one that stretches the mind in a great way.
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Cosmology is among the oldest subjects to captivate our species. And it’s no wonder. We’re storytellers, and what could be more grand than the story of creation?
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Falsifiability for a theory is great, but a theory can still be respectable even if it is not falsifiable, as long as it is verifiable.
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There’s no way that scientists can ever rule out religion, or even have anything significant to say about the abstract idea of a divine creator.
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The beauty of string theory is the metaphor kind of really comes very close to the reality.
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But if you think about a practical implication of enriching your life and giving you a sense of being part of a larger cosmos and possibly being able to use this [gravitational waves] as a tool in the future.
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Evidence in support of general relativity came quickly. Astronomers had long known that Mercury’s orbital motion around the sun deviated slightly from what Newton’s mathematics predicted. In 1915,
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We’re on this planet for the briefest of moments in cosmic terms, and I want to spend that time thinking about what I consider the deepest questions.
BRIAN GREENE