Do gravitons create energy from nothing? Look, you are kind of slow on this stuff so let me break it down. As time approaches infinity the usable energy will approach zero. There is no getting around this. There is no such thing as a free lunch, every transfer will have losses to the system. The universe had to have a beginning. It is not possible for the universe to be eternal.Are you not familiar with gravitons?Do you not know that for every energy to mass transfer and mass to energy transfer that there is a reduction in the usable energy of the system?No. It doesn't. You are misapplying the law in light of quantum equations.The 2nd Law of Thermodynamics does.Yes. There is absolutely nothing in the physical laws of the universe - particularly in light of quantum physics - that predicates a begining of the universe. It is just as likely that there was no begining as it is that there was. Next?No. I made observations before I made a hypothesis. You don't think Einstein made any observations? For starters Einstein observed that it was impossible for Newtonian mechanics and Maxwell's equations to both be right. I have observed that we live in a self referential universe which most likely did have a beginning. Both of these conditions are supported by the physical laws of science. Any problems so far?