One thing I like about Knockout, is that not every property in a model (or $scope in ng) doesn't necessarily need to be observable. I wonder if using something

One thing I like about Knockout, is that not every property in a model (or $scope in ng) doesn't necessarily need to be observable. I wonder if using something like Knockout for the data-binding layer could help with some of this, natively. (Not that Knockout doesn't have it's performance issues). (Note: I'm referring to Optimization #2 & #4, specifically)