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主题:【原创】宇宙之外 -- 达萨

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    • 家园 低熵态宇宙是来源于熵的涨落

      系统内整体熵增,局部熵减,是可能的。

    • 家园 可描述的宇宙一直都是熵增的。

      现代物理可以描述的宇宙大概是大爆炸后大爆炸后10负43次方秒之后,再往前就不可描述了。

      热力学第二定律更不能套到那个阶段去。

      宇宙中熵减只是局部现象,熵增是整体现象。

      现代物理脱离数学工具描述已经没法说话了,感性描述早就不适用了,想多了容易民科,早点睡觉比较好。

    • 家园 你的思想很快会受到虚无主义的抨击和嘲笑

      你的推理基本是正确的,犹如黑夜中的闪光,剩下的问题是你究竟能走多远。

      每个灵魂都有追求和探究真理的欲望,即使在物欲肉欲横行的世界里,真理也依然在等你。

    • 家园 Maybe because of gravity, we

      don't need a parallel universes or multiverse explanation.

      The second law of thermodynamics did not take gravity into account, it is appropriate at the time the law was proposed and gravity can be ignored in most situations even nowadays. But in the scale of universe, gravity is dominant, and the second law of thermodynamics may not hold at all. In other words, at a certain scale, when gravity cannot be ignored, the second law of thermodynamics is invalid. Look at a galaxy, or even at the scale of our solar system, I don't see the second law of thermodynamics has much use.

      So relax :), we still know very little about the nature of this universe.

      • 家园 我觉得这个解释很靠谱

        可观测的宇宙的有序结构基本都是由于引力作用引起的。

        问题是,引力的来源是质量,质量来自于能量。说到底。好像依然是宇宙内部的能量赋予其有序结构。所以,我的疑问还是没有彻底解决

    • 家园 我越来越相信宇宙是能量的量子呼吸

      能量在大的时间尺度里面是守恒的,但是在短的时间尺度里面是不守恒的,可以在0中“借出“巨大的能量,这个凭空而来的能量就是奇点时刻的能量来源, 我们随时会消失,因为要偿还这个能量。

      一呼一吸,这就是世界的面貌。

      太让人悲伤。

      • 家园 这时候适合看一看《道德经》

        道生一。一生二。二生三。三生万物。

      • 家园 一切都是能量,能量又是从何而来,走向何方!

        现有的思维方式其实解释不通的!

        只能短暂的存在而已!

      • 家园 那时间又从哪里来呢?

        曾经有一种理论是说宇宙就好比一弹簧,大爆炸那一点就好比是弹簧压到最紧的时候,然后剧烈的反弹扩张,所以我们的宇宙在不断膨胀、膨胀,当弹簧终于到最长的时候,就又会收缩,收缩,最终回到奇点,然后再爆炸、膨胀、收缩.....

        多好的理论呀,跟推背图中说的一样:“一阴一阳,无始无终。终者自终,始者自始。”

        可惜呀,这个理论的预言是宇宙的膨胀应该是个减速过程,而事实观察到的是彻底相反的:宇宙在加速膨胀

        为什么呢?似乎物理学家们还没有好的理论解释,或许已经有了,等其他河友科普吧

        • 家园 According to the latest

          research of String Theory, there will be a one direction property emerge when the inflation stage starts at the beginning of the universe. And this is what we feel as time.

          In regarding the acceleration of the expansion of the universe, most scientist think it is the space itself is expanding, and this can explain the acceleration of the expansion. However, what drives the space to expand is still a mystery, and it is called dark energy. One possible explanation is that the space itself is in a super cooled state and is going though a phase transition, just like super cooled water rapidly changes to ice, it will expand dramatically until the energy is used up

          BTW, due to the immense increase of the size of the universe during the inflation stage, the visible universe is only a tiny tiny fraction of what the big bang created. There could be regions that are similar to our visible universe, or parts that are completely different. In this sense you can say it is a multiverse, or there exists parallel universes. But, in regard to our visible universe ,as the expansion speed exceeds the speed of light, they have no influence on us

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