The real trick, in other words, is not what happens on the shifting stage but in the crowd.

换句话说，真正的把戏不在于移动舞台上发生的事情，而在于人群中发生的事情。

And then they quickly saw that the market at later stage was shifting to mobile, and they saw that firms like Instagram and WhatsApp instead were threatening to become more dominant in the mobile space and make Facebook irrelevant.

然后他们很快就看到后期市场正在向移动领域转移，他们看到 Instagram 和 WhatsApp 这样的公司反而威胁要在移动领域占据更大的主导地位，让 Facebook 变得无关紧要。