Virtual DOM diffing (the approach taken by React) is "faster" because, in the most simplistic definition, you can intuitively come up with the optimization ment

Virtual DOM diffing (the approach taken by React) is "faster" because, in the most simplistic definition, you can intuitively come up with the optimization mentioned in the article as it needs to know what exactly changed to calculate. What's good with React is that it does some of it automatically (with the keys and the structure you have to provide) and also gives you control with the "shouldComponentUpdate" method. Edit: Down-voters care to comment?