
From Eternity to Here
The Quest for the Ultimate Theory of Time
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Narrated by:
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Erik Synnestvedt
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By:
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Sean Carroll
Time moves forward, not backward---everyone knows you can't unscramble an egg. In the hands of one of today's hottest young physicists, that simple fact of breakfast becomes a doorway to understanding the Big Bang, the universe, and other universes, too. In From Eternity to Here, Sean Carroll argues that the arrow of time, pointing resolutely from the past to the future, owes its existence to conditions before the Big Bang itself---a period of modern cosmology of which Einstein never dreamed.
Increasingly, though, physicists are going out into realms that make the theory of relativity seem like child's play. Carroll's scenario is not only elegant, it's laid out in the same easy-to-understand language that has made his group blog, Cosmic Variance, the most popular physics blog on the Net. From Eternity to Here uses ideas at the cutting edge of theoretical physics to explore how properties of space-time before the Big Bang can explain the flow of time we experience in our everyday lives. Carroll suggests that we live in a baby universe, part of a large family of universes in which many of our siblings experience an arrow of time running in the opposite direction. It's an ambitious, fascinating picture of the universe on an ultra-large scale, one that will captivate fans of popular physics blockbusters like Elegant Universe and A Brief History of Time.
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The author basically admits although space and time being non-fundamental increasingly appears to be the case, he is unable to say anything interesting about this, so instead proposes solutions to the low entropy problem in a fundamental space-time context. This is a bit like looking for your keys under the streetlight because the light is better over there. Although speculation is an important aspect of science, successful speculation will illuminate by addressing several of the outstanding hints before us. Although the speculation was mildly interesting, the focusing on just one of the outstanding enigmas along with non-testability left it ultimately un-illuminating.
The author also indicates his preferred interpretation of quantum mechanics is the Multi-World interpretation. Although Carroll seems to point out QM having so many interpretations is odd (and likely another hint) instead of rejecting all the interpretations he seems to settle for one.
The key benefits of this book are the enigma and questions it raises. The author highlights most of the important enigmas giving us hints towards a fuller understanding of time; unfortunately he does follow most of the hint presented. For example the author points out the strong correspondences between information and entropy, even seeming to conclude that the information viewpoint is clearer and more fundamental, yet then proceeds to ignore the information viewpoint for the rest of the book.
Although the author does a pretty good job describing how classical entropy works, I am not sure I would have fully understood it without having listened to Penrose???s (long, detailed and daunting) description in Cycles of Time.
Great but looks for the keys under the streetlight
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A very good teacher…
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Sean Carrol is great but ...
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great listen well worth it.
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Great listen
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Best summary of modern cosmology yet, but....
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I will read anything Sean Carroll writes
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I wish Sean Carroll narrated it himself, but I guess he's too busy trying to figure out fundamental laws of physics.
Deep without being confusing
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Nevertheless, the heart of this book in Part 3 is excellent and provides a super clear explanation of entropy. The chapters before and after that feel like beating around the bush until the "solutions" chapter.
Good, but Flawed
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Worth it though.
Probably best to read.
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