如果一件事出错，它往往会严重遵循。这反映在流行的言论中，表明不幸永远不会孤单。复杂性理论表明，流行的俗话是成功的。不幸被分组。事情总是会变得更糟。那是现实世界。
(If one thing goes wrong, it tends to follow badly. That is reflected in the popular saying that states that misfortunes are never alone. The theory of complexity reveals that the popular saying is successful. Misfortunes are grouped. Things always go worse. That is the real world.)