Multiverse type 3) The many-worlds picture of quantum mechanics. Suprisingly, physicists still don't fully understand how the collapse of the wave function in quantum mechanics happens, and the many-worlds hypothesis makes an attempt at explanation by proposing that every possible alternate timeline for the universe is real and they all happen in an ever-larger, ever-branching way. Like, a universal choose-your-own-adventure where every possible story happens! If this were the case, we might not realize it because we'd be stuck living out just one of the infinitely many possible lives available to us. In some way, many-worlds is similar to the bubble multiverse model by proposing "maybe anything that can happen, does." And we just happen to exist in the series of happenings that were necessary for us to exist." If you're still not convinced by this logic, don't worry, there is not yet any experimental evidence for this kind of multiverse. 第三种，量子力学下的多重世界面相。惊人的是，物理学家尚未完全了解 量子力学中波函数崩缩如何发生。这种多重世界假说尝试对此提出解释， 它提出宇宙每个可能的时间线都是真实的，且以一个更大、更多支线的方式 发生。就像你自己的宇宙自由探险，什麽都可能发生！如果是这种情况的话， 我们可能不会意识到，因为我们困在无限可能的人生分支里的其中一种。 某种程度上，多重世界就像是泡泡宇宙模型，它们都提出＂所有可能的事 都会发生＂。而我们只是刚好存在於，所有一连串生存的必要条件都发生的 地方。如果你还是不相信，别担心，这种多重宇宙也还没有任何实验证据呢。 Of course if you want to get imaginative, you could also combine several of these models together into a multi-multiverse, a new super-speculative model based, itself speculative and experimentally unconfirmed models. But that's not to say we couldn't test the multiverse hypotheses. For example, if our observable universe were really just one of many disconnected bubbles or membranes and if it happened to collide with another bubble or membrane some time in the past, then that collision would certainly have had some sort of effect on what we see when we look up at the night sky. On the other hand, the many-worlds interpretation might be tested fairly soon since experimentalists are becoming increasingly able to manipulate and control ever-larger quantum mechanical systems in their labs -- systems that approach the line between the quantum realm and our everyday experience. So as always, we must remember that physics is science, not philosophy; and in our attempts to explain the universe that we observe, we have to make claims that it can in principle be tested -- and then test them! 当然如果你想有想像力一点，可以把这几种组合在一起，形成一个多重的－ 多重宇宙。一个全新、不确定、未经实验证实的，和极度理论为基础的模型。 但并不是说我们不能测试多重宇宙的假说。例如，如果我们的可观测宇宙真的 只是许多无关联的泡泡或膜之一，如果它们曾经彼此碰撞的话，必定会对我们 仰望的夜空产生一些影响。另一方面，因为目前在实验室里已更有能力控制 量子系统－这些系统处理量子领域和我们日常经验的界线，所以多重世界的 解释可能很快就可以验证。如同往常一样，我们要记住物理是科学而非哲学。 当我们试图解释我们观察到的宇宙时，原则上我们的主张必须是可测试的， 然後再验证它！ ***************************************************************** 这次翻感觉没有什麽问题，但应该是我自我感觉良好。如果前辈们觉得哪些 地方翻得不好麻烦说出来，小弟虚心接受，谢谢 :D 补充: 波函数塌缩这部分我是直接复制维基 http://en.wikipedia.org/wiki/Wave_function 不过塌缩的确没有 suddenly 的感觉在，我再修改一下。 wave-particle duality 我记得高中物理有提到，质量足够小时波的性质会显现出来。 因为 dunchee 的回文，我又找了其他东西。薛丁格的猫和哥本哈根诠释来解释 光和粒子的二相性。和观察对象产生关系会立即造成 superposition 的停止，但如果是 multiverse 就不会有这种事情。这样看来的话第三种 multiverse 更有平行宇宙的感觉。 这种每个有意无意的决定造成宇宙即时分裂的感觉还满震撼的XD 感谢，很有启发。:D --

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