I'm skeptical about ML being a "2.0" when we'll never stop using the 1.0 version altogether. But maybe he means it in the Python 2 -> 3 sense, where there's no

I'm skeptical about ML being a "2.0" when we'll never stop using the 1.0 version altogether. But maybe he means it in the Python 2 -> 3 sense, where there's no real expectation that the older version will ever stop being used.