The Doors of Eden by Adrian Tchaikovsky
This is one crazy book. Tchaikovsky always gives his readers mind bending concepts to grapple with but this reminds of the very end of Men in Black when the camera pans out from our planet, our solar system, our galaxy and then our entire universe only to reveal we are a marble being played with by a being of such scale that it makes one feel utterly insignificant. Not that I was there but it reminds of the first pictures of the earth as seen from space being sent back to ear