(Also) Your definition of metaphysical seems to be, "beyond our current physics".

I wouldn't use this definition. I wouldn't even use the definition 'beyond possible physics', because with information getting lost or being inaccessible, we might not be able to figure out everything. With it's link to "dualism" (that is, asserting there is something else besides X, alongside or containing X) I think metaphysics really needs to imply something stronger: that X cannot be complete; that X cannot be closed.