> It raises questions about the factors contributing to its success—whether it’s a result of the approach itself or despite it. AFAIK, the main factor contribu

> It raises questions about the factors contributing to its success—whether it’s a result of the approach itself or despite it. AFAIK, the main factor contributing to the success of Swift in the Apple ecosystem is probably it being the replacement for Objective-C. Unlike C or C++, which required going through Objective-C or Objective-C++ to access the native platform libraries, Swift could access them directly. That advantage does not exist on non-Apple platforms, which already have C or C++ as the most direct way to access the native platform libraries.