Seriously? Is this just a coincidence that another throwaway named "TakeTwo" and then "TresAmiga" are both making throw aways and dismissing all Go users? Jesus.
What he's describing is far more than possible using interfaces. I have plenty of code that does so.
How is that "wrong and he knows it". Your worse than any Go fan here. Where the hell does someone get off being vitriolic about a language or someone's preference for that language. Pathetic, at least have the balls to post under your real account.
That having been said, as an "incorrigible Go fan", I would love to see proper generics. It's something I'm enjoying in Rust. It's also something that everyone is open to adding in Go 2, so it doesn't necessarily have to be a permanent absence from Go.