Same way it rose up, just in inverse proportion since arrival and departure noon to midnight is completely different than dawn to dusk same rotation each next rotation added so far.
the ever changing numbers adapting in space daily here never staying the exact form as arrived at conception when dead to decomposed begins at the end of a beating heart and navigating brain existed in their specific lifetime, past, current just added great great grandchildren.
Father/mother, son/daughter, grandchildren when last generation becomes 1 of 2 parents the species lives forward.