Just as some non-mammalian animals can regrow their limbs or body parts(even a new head), so can we humans. The problem is that we don't know how to turn on the right genetic switches, to prevent pluripotent stem cells from becoming cancer cells. My RAVE is that in the future it will be science that will solve these differentiation problems. It will be science that will unlock the answers necessary for the regrowth of new limbs. It will be science that will unlock the answers to the Origin of the Universe, or other parallel realities. Quantum Field theories ARE testable(although barely). General Relativity require that the Universe be smooth and continuous, Quantum Mechanics require that the Universe be disjointed and discontinuous. Both Theories are experimentally and mathematically correct, and both are unfortunately incompatible with each other. The String Theory is a mathematical valid Theory, with the potential to unify both Theories. Its major flaw is that its strings at this time can't be observed directly. But its effects and predictability is. So , it is a Theory, not a hunch, an idea, or a hypothesis.
It is obvious that you don't know the significance of Bosons and Gravitons, or their relationship to the vibrating strings. These vibrating strings seem to have the same properties as the Graviton. The properties and effects of Dark matter and Dark Energy ARE real, testable and measureable. They(in themselves) are simply not observable. Regarding the power of prayer, many studies in medical and psychological journals support the beneficial effects of prayer. If you are claiming that God created amputees out of hatred, then I simply disagree.
In 10-20 years from now, we may have all the answers, that you seem to already have. Maybe the next generation of minds will speed up the process. Don