Not that I have any real answers here (re: theories of everything), but I do have something to add regarding "laws". Charle's Law states that Pressure * Volume

Not that I have any real answers here (re: theories of everything), but I do have something to add regarding "laws". Charle's Law states that Pressure * Volume = Temperature. That's true and you can do a million experiments with a million balloons and liquids/gases to validate it - until you find a non-newtonian substance, try to apply it to a solid, introduce moving fluids, etc. Charle's Law isn't a fundamental law of physics, but a consequence of the material properties and statistical outcomes of a large number of interacting molecules. Before atoms and molecules are characterized, it _does_ look like a fundamental law to an experimenter. It doesn't seem to me that looking for "lower layers" of theoretical physics (holographics, quantum foam, strings, whathaveyou) is an infinite regress and doomed to never be a completed project. I do think that the project may reach some point where the theories fail to be scientific (read: falsifiable) because it could be possible that reaching deep enough through layers of physical abstraction can not be achieved / no physical instrument can provably be built to look deeper (as an analogy, no instrument can be built to probe the full amplitude space of a quantum state).