liuw! A Type II Civilization can harness all of the energy of their host star. Our feeble Type I brains can hardly imagine how someone would do this, but we’ve tried our best, imagining things like a Dyson Sphere.
p'fD:M: II型文明能够利用其主恒星的全部能量。人类大脑很难理解II型文明，但人类正在尽全力想象，比如戴森球。
; 1^ ([>| 
zK_+UT 5;alq]m7 A Type III Civilization blows the other two away, accessing power comparable to that of the entire Milky Way galaxy.
fPA5]a9 III型文明远超I，II，它可利用的能量和整个银河系的能量总和差不多。
h(>eHP y$Y*%D^w If this level of advancement sounds hard to believe, remember Planet X above and their 3.4 billion years of further development. If a civilization on Planet X were similar to ours and were able to survive all the way to Type III level, the natural thought is that they’d probably have mastered inter-stellar travel by now, possibly even colonizing the entire galaxy.
h {5K9$9= III型文明的先进令人难以置信，这不过是34亿年的发展结果。如果行星X上的文明智慧程度和人类相似，而且幸存发展到III型，我们会很自然地想到他们掌握了星际旅行
技术。
^ W*T~V*8 L 3@up b One hypothesis as to how galactic colonization could happen is by creating machinery that can travel to other planets, spend 500 years or so self-replicating using the raw materials on their new planet, and then send two replicas off to do the same thing. Even without traveling anywhere near the speed of light, this process would colonize the whole galaxy in 3.75 million years, a relative blink of an eye when talking in the scale of billions of years:
c@&`!e 一种星际移民的想法是发明一种能够到达其他行星的装置，花费500年左右以当地现有材料自我复制，然后送去两个同样装置做同样的事。甚至不用接近光速的移动，通过这样一个过程只需要375w年就可以完成殖民，几十亿年计划起来就像一眨眼：
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