Gravity: Source of energy and entropy in the universe

Quantum theoretical consideration of a black hole has revealed that it has an entropy and a temperature. Relation between the gravothermo catastroph and the black hole entropy has not been clarified. The idea of gravitational entropy given by the Weyl tensor was not successful. The author considers a system which consists of one black hole and black body radiation with the same temperature. The entropy is given in an equation form. This paper concludes that the universe has passed through the BH phase since the Planck epock. It has not been the entropy maximum phase where most energy would have condensed into the black hole. The author asks: ''How large is the difference between the maximum entropy and the present entropy?'' Taking the horizon volume of (10iotay)/sup 3/, the entropy of matter is given roughly by the number of the microwave background photons combined with the Baryon-Photon ratio and nucleon mass respectively, the maximum entropy is attainable when they merge into a single black hole. The author believes the there is an enormous entropy gap. However, local system on the globe has been maintained through a more subtle balance of entropy