Reality as we see can only be defined. It exists and we have to deal with it. We are confronted with this reality, so we must brutally place it in our thinkings.
Thus any attempt to find a new physical law will run into empirical reality. It will be about finding what is real with a new law which will be either quantum, or relativistic, or both at best.
If it is quantum, then the empirical has no more value in this law. However, we must convince us with empirical thinking to show that we are into real. We will use other quantum laws found to show links with our new quantum law.