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Yl~ $ V( (9]6bd If Planet X has a similar story to Earth, let’s look at where their civilization would be today (using the orange timespan as a reference to show how huge the green timespan is):
cvfUyp;P 假设行星X的历史进程和地球差不多，让我们看看他们的文明现在会成什么样（以橙色时间间隔作参考，看绿色时间间隔多长）：
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|n`PESf_ p x#suy The technology and knowledge of a civilization only 1,000 years ahead of us could be as shocking to us as our world would be to a medieval person. A civilization 1 million years ahead of us might be as incomprehensible to us as human culture is to chimpanzees. And Planet X is 3.4 billion years ahead of us…
rLzW` 看见一个科学和知识仅超过地球1000年的文明，我们只会像中世纪人看见现代人一样震惊。对于超过地球100w年的文明，我们就是无法理解他们的黑猩猩。行星X超越我们34亿年...
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GmSU pDn&V( There’s something called The Kardashev Scale, which helps us group intelligent civilizations into three broad categories by the amount of energy they use:
g*y/j] 卡尔达肖夫指数把文明按照能源使用率分为三大类。
59 <hV? 1`JB)9P A Type I Civilization has the ability to use all of the energy on their planet. We’re not quite a Type I Civilization, but we’re close (Carl Sagan created a formula for this scale which puts us at a Type 0.7 Civilization).
OPuj|%Wgw I型文明能够利用他们星球上所有能源。地球接近I型文明，Carl Sagan创建了一种公式，我们属于0.7型文明。
