The piece is really well written and makes some good points (especially about Apples code base, the costs of rewrites, etc.) I'm still perplexed by the argumen

The piece is really well written and makes some good points (especially about Apples code base, the costs of rewrites, etc.) I'm still perplexed by the argument that there are boxes like "Objective-C programmer" or "C++ programmer" and that this categorization is a good abstraction for thinking about these problems. In earnest, nobody working as a developer can expect to use the same tools in 5-10 years that they are using today, especially in fields like mobile. It's not that hard to learn a new programming language if the paradigms are known from another language. Swift is not that different from other imperative languages that there would be a particularly bad learning curve.