The Quantum puzzle is perhaps the biggest mystery facing physicists today. As the theory of the atom, quantum mechanics is perhaps the most successful theory in the history of science. It enables physicists, chemists, and technicians to calculate and predict the outcome of a vast number of experiments and to create new and advanced technology based on the insight into the behavior of atomic objects. If the theory is so accurate and useful then why this debate ? This is because It is also a theory that challenges our imagination. It seems to violate some fundamental principles of classical physics, principles that eventually have become a part of common sense since the rise of the modern worldview in the Renaissance. So the aim of any metaphysical interpretation of quantum mechanics is to account for these violations.
Relational Interpretation, though not exactly new is revived by Carlo Rovelli who has put the theory on a firm mathematical basis rather than purely metaphysical grounds. The theory makes an interesting case for the application of quantum information as an epistemological tool to arrive at a fundamental theory of the quantum . There is still a long way to go though.
Me and Vikas wrote a term paper on the theory ; dealing with some difficulties associated with quantum mechanics and how the theory maybe able to overcome them . For those who are interested check out the full paper here