[AntonioLao]

In light of the theoretical successes of muon-catalyzed cold fusion, in principle, a tau-catalyzed fusion should produce a lot more energy. However, the insurmountable problem remains with the production of enough tau particles for sustaining the reaction. Furthermore, these tau particles must also live long enough for initiating a continuously fusion chain reaction. Since the mass of the tau is almost twice the mass of the proton, the hydrogen isotope composed of tau and proton would more than likely to have the proton orbiting the tau instead of the other way around. But if the nucleus is composed of a proton and a neutron, the mass of tau would be slightly less than the deuteron and it can orbit the deuteron forming an extremely compact hydrogen isotope that initializes even a much colder fusion reaction at absolute zero temperature.