[matttthompson]

I appreciate your feedback, but I think you're reading an entirely different argument than what is presented in the article. It's not that everything is going to be rewritten in Swift (I'm not sure where you got that idea). Rather, the article is an exploration of what Swift without Obj-C & Cocoa could be, and under what circumstances that might become a reality.

If Swift doesn't have to accommodate Objective-C as it currently does, it's reasonable to assume that system frameworks will be designed and built in ways that make the most of Swift's language features, just as Cocoa currently does with Objective-C.

[jawngee]

    What is almost certain, however, is that Cocoa, 
    like Objective-C, is doomed. It's not as much a 
    question of whether, but when.

That was the part I was responding to.