> It knows which properties are accessed in each component, and ensures only the ones that rely on the changed data are updated. This is what blew me away. I u

> It knows which properties are accessed in each component, and ensures only the ones that rely on the changed data are updated. This is what blew me away. I understood that "computed" values were doing this, but when I saw that the react components were using it as well, I was sold. I have been in componentWillReceiveProps with redux too much, trying to improve rendering performance. With mobx, out of the box, you get 100% exact render updating.