Comment by jakeinspace

I won't touch level 8/9 nothings, other than to say I don't think they're coherent. But I am of the metaphysical camp that thinks there will be at least some small ground truth which physical law or object which cannot be reduced, an axiom of nature. Physics unfortunately will probably always be limited in distinguishing between basic facts which are truly irreducible, and those which are simply limits of our observational abilities. That's the thing that bothers me; even if there were a single beautiful law of nature that just IS, one which we actually manage to postulate based on evidence, we will never know for sure. GR definitely has a beautiful mystique, it's a shame that it's most likely just a mathematical approximation.