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    July 22

    重读《时间简史》

        前些天把时间简史翻出来重新看了一看,今天刚好全部读完,写点感想。
        就内容而言,时间简史确实是一本好书,确实称得上科普读物的典范。讨论牛顿引力,讨论恒星运动,讨论黑洞,讨论不确定性原理,讨论宇宙起源。小小一本册子,内容却相当丰富。整本书的语言相当精练,字字锱铢,一气呵成。
        不过,这次读时间简史,还是觉得有些许不痛快。记得第一次读它时几乎把它看作神圣的经典,但这次却是因为自己对霍金有了一些偏见后重新翻读翻读。个人感觉,霍金这人的个人形象确实跟老爱之辈的崇高差之千里。
        首先,读这本书的时候总感觉霍金有点强奸民意地向所有读者灌输他自己的理论。书中不断地提到他在某时针对某某问题提出一个某某理论,然后自己再回过头来把这个理论给予很高地评价,他的理论好像总是能够解决一些问题,好像没有这个理论就不行似的。说句不客气的话,这本“时间简史”可以改名为“霍金简史”。可是事实却是,就宇宙起源的问题,到目前为止谁都不能百分之百地肯定,就目前而言只是存在几种比较流行的宇宙模型罢了。让我气氛的是,霍金洋洋洒洒对大爆炸理论、爆膨模型之类的观点详尽地进行了描述(也许因为这些理论都基于他提出了奇点原理,即宇宙必须起源于一个体积无限小密度无限大、物理定理在此全部实效的点),然而却只字为提诸如准恒态、准静态等同样非常有效的理论(在J.V.纳里卡的一本书里我对此读到不少东西)。如果说他不知道这些理论,恐怕很难让人信服。
        其次,作为科普读物,霍金在解释宇宙起源时不停地将“上帝”拉进来。在用逻辑解释不通为什么宇宙的太初状态正好能够演变成现在的状态时,他简单地用“上帝”敷衍了。尽管后来他提到其他一些科学家的工作,他们很好地解释了这个问题,但是在最后一章尾声中,他几乎是全篇的上帝者也。且问这是科学家写的书还是基督教徒的圣经?

        不过上面只是本人一家之言,爱理不理,悉听尊便。

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