The paper presents a possible framework of ontology of information/energy/matter unity inspired by recently published data on possibility of Informational Catastrophe on our planet based on information/energy/matter equivalence principle. Nevertheless, theoretical physicist proponents take the reductionist stand on such equivalence principle from which information does not represent the same fundamental entity as matter and energy do. For purpose of demonstrating the information/matter/energy fundamental unity, an account of Milky Way galaxy as galactic quantum computing system is presented. The proposed hypothesis of Informational gravity and Emergent Information based on quantum effects helps to build the possible quantum computational entanglement of the Sun and the Earth.