On: The Zen of Go

[throwaway894345]

What are you talking about? You could do exactly this in Java or C# or Python or Ruby or JS or etc. Not sure what ”traditional” languages you’re talking about, but this is just reflection and downcasting. It’s a bad idea, but it’s unrelated to OOP.

[apta → throwaway894345]

You can't cast a type to an arbitrary interface and hope that it implements the method(s) you want to call in Java or C#.

[throwaway894345 → apta]

They aren’t “hoping it implements an interface”, they use reflection to determine whether or not the type implements the interface. This is pretty much the same thing in Java or C# with reflection and downcasting, but it’s a bad idea in both languages.