The idea of the mutability, the fact that she was all things to all people.

她千变万化的形象，仿佛是众人心中各种期待的化身。

And the second thing that I think Russ does really like is such a good thing is that mutability of something is you have to specify it.

我认为Russ非常欣赏的第二点，也是非常好的一点是，对于某物的可变性，必须明确指定。因，能只是创一个变量意改变它。

Explain the conservatism of Icelandic more like Facebook and the mutability of English more like Twitter, Emoji or does they may look?

解释冰岛语的保守性更像脸书，而英语的可变性更像推特或表情符号，它们可能看起来是怎样的？

Because RefCell, for example, lets you do interior mutability, which is just, it's not super important what it is.

比如说， RefCell 允许进行内部可变性操作，虽具体是什么并那么重要。

Thus just as earlier theories have explained the mobility of the continents, so hot spots may explain their mutability (inconstancy).

因，正如早期理论解释了大陆的流动性一样，热点可能解释了它们的多变性（稳定性）。