> What matters more professionally is Frameworks, SDKs, Libraries, etc. It depends. Frameworks and SDKs cannot overcome shortcomings of your language and/or l

> What matters more professionally is Frameworks, SDKs, Libraries, etc. It depends. Frameworks and SDKs cannot overcome shortcomings of your language and/or language implementation (and often you don't have the luxury to switch gears, because there is only one reference implementation). When I studied Erlang's support for concurrency, I realized how hard it would have been trying to do that in another language. Yes, you could somewhat manage to replicate that, but: - your language implementation could lack microthreads, thus impacting how concurrency would scale; - you may need to follow some protocol in using the framework, otherwise you could fall into one of many pitfalls, which aren't there in the language you're using as a model.