事实是每个人都相信的简单陈述。它是无辜的，除非被证明有罪。假设是没有人愿意相信的新颖建议。它是有罪的，直到被证明有效。

There's a real correlation between a society that tells people that they can do anything, and the existence of low self-esteem. So that's another way in which something quite positive can have a nasty kickback. There is another reason why we might be feeling more anxious --about our careers, about our status in the world today, than ever before. And it's, again, linked to something nice. And that nice thing is called meritocracy.

控制理论是基于过去的信息来影响未来。