After the Curtis-Shapley Debates, the macro universe had been defined as a grouping of island universes.  The island universes, or galaxies, were constructed of stars.  And among those stars were the Sun and its planets.  And diving down into these planets, we find ourselves on Earth, which contained an active ecosystem constructed of land, air, and life all interconnected to each other.  That was the picture around the time of these debates.  But other observations were being made, observations that indicated a micro world underneath all matter.  The observations were of particles making sinuous trails in the clouds; light being dispersed in component colors; and electronic jumps caused by light shining on metal.  This suggested a world of components, of quanta. And this made all the difference in our world view; that the small affects the large.  After reading “Quantum Behavior” in Six Easy Pieces (R. Feynman; 1995; Helix Books, pgs. 115 – 138); comment on the world view before and after the development of quantum theory.