The most common myth about crowds is that they are spontaneous, or worse, that they are hotbeds of violence, with complete chaos only a few ill-judged jostles away.

• 最普遍的对群众的误解是他们是自发形成的，更糟的是，他们是暴力的温床，仅仅因为一点点缺乏考虑的冲突。