[Silhouette]

Again, I generally agree with your comments here. I just think it's important to point out that this particular leak exists, because a lot of React advocacy completely glosses over the point. The need to have a data model that supports quick diffs one way or another has profound implications for the scalability of your front-end code and it's an architectural decision that will be expensive to change later if you get it wrong initially and learn that the hard way.