Even with very conservative estimates, it should still be swarming with life-even intelligent life.
即使很保守的估计，它应该还是挤满了生命——甚至是智能生命。
Their analogue TV age probably came and went long ago, before humans even thought about searching the sky for signs of intelligent life.
他们类似的电视时代大概在很久以前，甚至在人类想到要在天空中搜索智慧生命信号之前就到来又过去了。
Any intelligent aliens we meet could be so far advanced we might have a hard time even recognizing them as being life-forms at all.
这些异星生命所处的阶段可能已与我们非常遥远，以至于当我们接触他们后需要花上好长一段时间才能确认他们的生命形式。
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