Yes. That's precisely correct. We don't have a clueSo my simple answer is I have no freaking clue
There has to be some law or laws for supervenience.To say something is an "emergent phenomenon" is one part ignorance, one part explanation. The explanation is that the phenomenon supervenes on other systems. This isn't much as far as explanations go, but it is the best we can currently do and still be have an intellectually humble answer. It does allow us to say a few things, and offers a framework for further explanation. So it is more than mere ignorance.
If there is no causation of supervenience, then it's just a brute fact, correct?
But isn't the purpose of science to identify and explain laws?
Is it a scientific explanation to say that physical and "unphysical" processes supervene but not being able to identify or explain the applicable law?
(keep in mind I am just trying to formulate questions that relate to this topic. I haven't done a whole lot of leisure reading about this)