especially her claim that in addition to things animals (especially humans) learn empirically (from observation of things that go on in the world, some of them linked to exploratory and other actions performed before or after the observations), there are also kinds of learning that are not empirical in the same sense, but come from some sort of reinterpretation or reorganisation or metacognitive processing that in many cases occurs spontaneously, driven not by explicit biological needs or external rewards, etc., but simply because that's what certain evolved developmental processes do, after something systematic and complex has been learnt. (Those are my words not hers -- but I think that's an important part of the message.)