三体“古筝行动”让网友直呼震撼！刘慈欣美版《三体》后记发人深省……

A night from my childhood remains crisply etched in my memory: I was standing by a pond before a village somewhere in Luoshan County, Henan Province, where generations of my ancestors had lived. Next to me stood many other people, both adults and children. Together, we gazed up at the clear night sky, where a tiny star slowly glided across the dark firmament.

童年的一个夜晚清晰地刻在我的记忆里：我站在河南省罗山县某村庄的池塘边，我的祖辈曾在这里生活过几代。我旁边站着许多人，有大人也有孩子。我们一起仰望着晴朗的夜空，一颗小星星缓缓划过暗淡的天际。

It was the first artificial satellite China had ever launched: Dongfanghong I (“The East is Red I”). The date was April 25, 1970, and I was seven.

这是中国发射的第一颗人造卫星：东方红一号。那一天是1970年4月25日，我七岁。

It had been thirteen years since Sputnik had been launched into space, and nine years since the first cosmonaut had left the Earth. Just a week earlier, Apollo 13 had safely returned from a perilous journey to the moon.

从“斯普特尼克号”（人类第一颗人造卫星）发射到太空已经13年，从第一位宇航员飞出地球也有9年。就在一周前，“阿波罗13号”从险象环生的登月飞行中安全返回月球。

But I didn't know any of that. As I gazed at that tiny, gliding star, my heart was filled with indescribable curiosity and yearning.

但这些我都不知道。当我凝视着那颗小小的、滑翔的星星时，我的心中充满了难以形容的好奇和向往。

From that moment, I realized that I had a special talent: Scales and existences that far exceeded the bounds of human sensory perception—both macro and micro—and that seemed to be only abstract numbers to others, could take on concrete forms in my mind. I could touch them and feel them, much like others could touch and feel trees and rocks. Even today, when references to the 15-billion-light-year radius of the universe and "strings" many orders of magnitude smaller than quarks have numbed most people, the concepts of a light-year or a nanometer can still produce lively, grand pictures in my mind and arouse in me an ineffable, religious feeling of awe and shock. Compared to most of the population who do not experience such sensations, I don't know if I'm lucky or unlucky. But it is certain that such feelings made me first into a science fiction fan, and later a science fiction author.

从那一刻起，我意识到我有一种特殊的天赋：那些远远超出人类感官范围的尺度存在——无论是宏观还是微观——对别人来说似乎只是抽象的数字，在我脑海中却可以呈现出具象的画面，我可以触摸它们，感受它们，就像其他人可以触摸树木和岩石一样。即使在今天，150亿光年的宇宙半径和比夸克小很多数量级的“弦”令大多数人麻木时，一光年或一纳米的概念仍然能在我的脑海中产生形象且宏伟的画面，并在我心中唤起一种难以言喻的、宗教般的敬畏和震撼感。与大多数没有这种感觉的人相比，我不知道我是幸运还是不幸。但可以肯定的是，这样的感受让我先成为一个科幻迷，后来又变成了科幻作家。

I've always felt that extraterrestrial intelligence will be the greatest source of uncertainty for humanity's future. Other great shifts, such as climate change and ecological disasters, have a certain progression and built-in adjustment periods, but contact between humankind and aliens can occur at any time. Perhaps in ten thousand years, the starry sky that humankind gazes upon will remain empty and silent, but perhaps tomorrow we'll wake up and find an alien spaceship the size of the moon parked in orbit. The appearance of extraterrestrial intelligence will force humanity to confront an Other. Before then, humanity as a whole will never have had an external counterpart. The appearance of this Other, or mere knowledge of its existence, will impact our civilization in unpredictable ways.

我一直觉得外星文明将是人类未来最大的隐忧。其他的大变故，如气候变化和生态灾难，都有一定的过程和缓冲适应期，但人类与外星人的接触随时可能发生。也许一万年后，人类凝视的星空仍将空无一物，寂静无声，但也许明天醒来时，就发现一艘和月球一样大的外星飞船停在地球轨道上。外星文明的出现将迫使人类对抗另一个“他者”。在那之前，人类作为一个整体，从未接触过来自外部的对应物。这个“他者”的出现，或者仅仅知道“他者”的存在，都将对我们的文明产生不可预知的影响。

There's a strange contradiction revealed by the naivete and kindness demonstrated by humanity when faced with the universe: On Earth, humankind can step onto another continent, and without a thought, destroy the kindred civilizations found there through warfare and disease. But when they gaze up at the stars, they turn sentimental and believe that if extraterrestrial intelligences exist, they must be civilizations bound by universal, noble, moral constraints, as if cherishing and loving different forms of life are parts of a self-evident universal code of conduct.

人类面对宇宙时所表现出的天真和善良揭示出一种矛盾：在地球上，人类可以毫无顾忌地踏进另一个大陆，通过战争和瘟疫摧毁那里的同胞。但是，当他们凝望星星时，却变得感性，他们相信，如果外星文明存在，它们当然是受普遍、高尚、道德约束的文明，仿佛珍爱其他文明是理所当然的宇宙行为准则。

I think it should be precisely the opposite: Let's turn the kindness we show toward the stars to members of the human race on Earth and build up the trust and understanding between the different peoples and civilizations that make up humanity. But for the universe outside the solar system, we should be ever vigilant, and be ready to attribute the worst of intentions to any Others that might exist in space. For a fragile civilization like ours, this is without a doubt the most responsible path.

我认为应该恰恰相反：让我们把对外星人的善意转移到地球的人类同胞身上，建立不同民族和文明之间的信任和理解。但对于太阳系以外的宇宙，我们应该时刻保持警惕，并将最坏的恶意归于太空中可能存在的任何人。对于像我们这样弱小的文明来说，这无疑是最负责任的道路。

As a fan of science fiction, it has molded my life, and a considerable part of the science fiction I've read comes from America. The fact that American readers can now enjoy my book makes me both pleased and excited. Science fiction is a literature that belongs to all humankind. It portrays events of interest to all of humanity, and thus science fiction should be the literary genre most accessible to readers of different nations. Science fiction of ten describes a day when humanity will form a harmonious whole, and I believe the arrival of such a day need not wait for the appearance of extraterrestrials.

作为科幻小说的粉丝，它塑造了我的生活，我读过的科幻小说中，有一部分来自美国。我很高兴美国读者现在可以享受我的书。科幻小说是属于全人类的文学作品，它描绘了全人类感兴趣的事件，因此科幻小说应该是不同国家读者最易接触到的文学流派。科幻小说经常描述人类将形成一个和谐的整体，我相信这一天的到来不需要等待外星文明的出现。