Name: 肖恩·卡罗尔：遥远的时间与多元宇宙的迹象
Uploaded: 2011-05-05T02:40:00Z
Duration: 15 min 37 s
Description: 在TEDx加州理工学院，宇宙学家肖恩·卡罗尔把我们带入一段娱乐性强且发人深省的，穿梭于时间与宇宙之间的旅程，目的是探究一个貌似简单的问题：为什么存在着时间？潜在的答案指向的对于整个宇宙以及宇宙中的我们的见解足以令人称奇。

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Sean Carroll: 肖恩·卡罗尔：遥远的时间与多元宇宙的迹象

肖恩·卡罗尔：遥远的时间与多元宇宙的迹象

在TEDx加州理工学院，宇宙学家肖恩·卡罗尔把我们带入一段娱乐性强且发人深省的，穿梭于时间与宇宙之间的旅程，目的是探究一个貌似简单的问题：为什么存在着时间？潜在的答案指向的对于整个宇宙以及宇宙中的我们的见解足以令人称奇。

Time’s relentless forward march is rooted in a deep puzzle: the early universe was astonishingly smooth and low in entropy, a delicate starting point unlikely to arise by chance. There are roughly a hundred billion galaxies, each with a hundred billion stars, yet they were once packed into a region smaller than a grapefruit. Scientists have discovered that the universe is not only expanding but accelerating, driven by dark energy that fills even empty space. Grappling with why our universe began with such order—and whether it’s just a tiny part of a vast multiverse—forces us to rethink our place in time.