an explanation = an answer of intelligence?

emergent stuff = anything that occurs emergently?

Context:


I think of intelligence as the high-end scenery of neurophysiology — as the outcome of many aspects of an individual’s brain organization which bear on doing something one has never done before. We may not be able to explain intelligence in all its glory, but we now know some of the elements of an explanation. Some are behavioral, some are neurophysiological, and some are evolutionlike processes that operate in mere seconds. We even know something about the self-organizational principles that lead to emergent stuff — those levels-in-the-making, as when (to anticipate a later chapter) categories and metaphors compete for cerebral territory.