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by RossBencina 2330 days ago
I believe that the distinction that Stepanov is alluding to is the distinction between intensional and extensional types.[1]

> Of course, that's exactly what Alan Kay says

I'm not sure what Alan Kay says. Your post could be improved by providing a reference or quote so that I can read Alan Kay's take. Note that to varying degrees both C++ and Haskell allow for intensionality without resorting to dynamic types.

[1] https://en.wikipedia.org/wiki/Extensional_and_intensional_de...

Edit: clarity.