> I disagree; you can learn 90% of Go in an afternoon. Learning a language only starts with knowing the formal spec. Then you have to learn how to express you

> I disagree; you can learn 90% of Go in an afternoon. Learning a language only starts with knowing the formal spec. Then you have to learn how to express yourself efficiently and in mechanical sympathy with the language. That takes time. Worse yet, a significant portion of developers can't do it without a lot of help.