QUOTE : The deep significance of this discovery appears to be that we have found a physical situation where two different natural principles, of quantum mechanics and general relativity, come together, which admits of a simple thermodynamic description. We expected all the rules governing how things behave in such a quantum gravitational situation to be complicated and novel. Many undoubtedly are; yet we find that the tried and tested principles of thermodynamics encompass them within their dominion. Besides giving physicists confidence that they might be able to elucidate still more complicated problems of basic science by appeal to simple thermodynamic principles, this case history bolsters our faith in thermodynamics as a paradigm for a 'law' governing the organization of complex systems.