I don’t know how cats work, and I won’t pretend I know. I know they live by the motto “If I Fits, I Sits”, of course. That’s in any science textbook. My quick take on them is that they are either a plasma or some kind of very chunky gaseous substance. They seem to be attracted to containers and want to be one with them. My theory is that they are much like a classical genie, and want they really want is to be in some kind of magical lamp. They hate granting wishes though.