现在仍有理由对地外智慧生命的探索持乐观态度吗?迄今,世界各地的研究人员在监听来自宇宙的其他星球文明有可能传来的电子信号方面已作了25年之久的尝试。在此过程中,研究人员使用了大型望远镜和越趋尖端的设备。然而,遗憾的是,这方面的努力并未获得令人鼓舞的结果,一些科学家已对这方面作进一步探索的价值深表怀疑,其理由下文将述及。另一方面,仍有些乐观派人士基于他们对地外智慧生命存 Is there still reason to be optimistic about the extraterrestrial wisdom of life? So far, researchers around the world have been trying for 25 years to listen to the possible electronic signals from other planetary civilizations in the universe. In the process, researchers used large telescopes and more sophisticated equipment. Unfortunately, however, encouraging efforts in this area have not yielded encouraging results, and some scientists have cast doubt on the value of further exploration in this area, the rationale behind which will be covered. On the other hand, some optimists are still based on their survival of extraterrestrial wisdom