A complete understanding of genetics and manipulation as a technology, with the social connections to make it useful to everyone without capitalist exploitation.
I'm not a god, yet I can extend the lives of everyone including myself, maybe indefinitely
I can eradicate all diseases. Alter probable animal behavior, or entire ecosystems.
I can create a new era of lab grown organic technology that runs from photosynthesis or caloric intake. A computer could be a synthetic brain like structure with similar organic based power requirements.
My super power makes humans a galactic species as I can solve all problems related to time, hibernation, radiation, and a sustainable ecosystem.
Within a few decades, we would be contemplating the furthest galaxies that could be reached realistically with hibernation ships.