So to be clear, I love all of those languages and wish the design space of prototype-based inheritance was explored more. Having said that: why would he though

So to be clear, I love all of those languages and wish the design space of prototype-based inheritance was explored more. Having said that: why would he though? In this particular talk he's trying to argue to people who program in C++ why the historical C++ architectures are limiting it, he's not trying to convince anyone to switch languages. So those languages aren't his audience.