Hurr durr you can't change the laws of physics durr hurr.
We don't have a grand unified theory, so the laws have to change if we are to accommodate one.Can you explain this statement? I'm a little confused on what you mean by "the laws have to change in order to accommodate one". Laws can not change, however our interpretation of those laws may.
The Standard Model (AKA "The Laws of Physics") doesn't account for gravity, among other things.
It will have to change when we update it to include gravitation, etc.
For a preview of how the laws of physics will change, see
http://en.wikipedia.org/wiki/Physics_beyond_the_Standard_ModelWe are not sure if the laws of physics are the same everywhere and at all times in our own universe, much less in the many worlds of the Copenhagen interpretation.
Speaking of Copenhagen, its core message is an ineffable Zen-like declaration that our interpretation of the supposedly objective reality *IS* the reality for all intents and purposes: the observer's observation creates the measurement. Statements about non-observables are meaningless...the implementation is the specification.

According to John G. Cramer, "Despite an extensive literature which refers to, discusses, and criticizes the Copenhagen interpretation of quantum mechanics, nowhere does there seem to be any concise statement which defines the full Copenhagen interpretation."