It just dawned on me in a profound way that cells have been dividing continuously since the very first biological cell, and all life on earth is a result of cell division and that life is a single organism.
If life arrived here via meteorite then that continuum of cell division and life predates the formation of our solar system.
Cell division from a common ancestor, which is older than earth. We are very old.
#biology
@freemo in which case I am younger than the rock