Title Text:An eternity later, the universe having turned out to have positive curvature and lots of mass, the boomerang hits him in the back of the head. Origin:https://xkcd.com/475/ https://www.explainxkcd.com/wiki/index.php/475:_Further_Boomerang_Difficulties https://app-xkcd-cn.appspot.com/ 这部漫画是445的续集：我对Boomerangs并不好，因为它以相同的面板布局处理相同的主题方式。 第一个条带显示Cueball投掷一个回旋镖，它不会回来。在939：箭头中… Read more