- "it has nowhere near the expressive power of those languages"
- "this is LESS powerful than any OO dynamic language"
- "there are quite a few use cases where there is no answer"(a link to a 100-post thread is not good enough)
- "Scala can do the same thing (and more elegantly)"
- "large teams of mediocre programmers"
Yes you can hamfist your way around interfaces and empty interfaces, but it's a complete and utter chore and requires a lot of code duplication for each individual type you want.
I like Go in the sense that you can write things quickly and cleanly, but for the use case above, it's not appropriate.
The lack of generics makes Go unsuitable to write typesafe,
reusable data structures for use in many popular
algorithms. That's a fact.