I'd like to credit all those researchers in the original CALO project, and all the hardworking AI scientist all over the world, who have made the evolution of AI to a concrete product possible. If we begin to talk about artificial intelligence revolution, Apple has nothing to do with it in my opinion.
And we mustn't forget Maxwell, Ada Lovelace, Euclid, Plato, Roger Bacon, and the medieval monks. It's always important to trace back credit for any product from Apple to someone who isn't Apple.