Is There a Level in Physics?

People use the word emergence talk about this stuff. Here is why iu can get confusing. Because physicists think about emergence as saying that there exist. And what the physicist will say is, the different levels might very well speak different vocabularies - but they're compatible. It's just that the higher level emergent description is taking advantage of the existence of patterns that simplify things that are implicit in the lower level dynamics a. So in other words, for that's why i like to use the centre of mass of the earth as a special example.