Deepest part of the ocean. 10924 meters http://geology.com/records/deepest-part-of-the-ocean.shtml

Radius from earth to the edge of the visible universe: 46.5 billion light years, http://geology.com/records/deepest-part-of-the-ocean.shtml

Satoshi Nakamoto: a human being or beings

I know what you are trying to say, "why ask unanswerable questions", but all questions have answers.