Title Text:But seriously, there’s loads of intelligent life. It’s just not screaming constantly in all directions on the handful of frequencies we search. Origin:https://xkcd.com/384/ https://www.explainxkcd.com/wiki/index.php/384:_The_Drake_Equation 德雷克方程式 https://www.douban.com/photos/photo/739584672/ 这部漫画是多层次的，似乎是兰德尔对费米悖论的看法。 对于初学者来说，德雷克方程是由美国天体物理学家弗兰克德雷克（Frank … Read more