成为黑天鹅要满足两个要素，意料之外和情理之中。意料之外就是这一块市场的发展周期显示，还远远不到爆发的时机他却突然因为偶然因素爆发了；情理之中则是，这个市场的爆发符合当时的背景环境，不是空想生造
Being a black swan requires two elements, unexpected and reasonable. Unexpectedly, the development cycle of this market shows that it is far from the time of outbreak, but he suddenly broke out because of accidental factors; reasonably, the outbreak of this market is in line with the background environment at that time, not fantasy.
