Movement

A brief digression is in order on the subject of movement.   We have said that the "and" and the "or" underlie all physical history based upon the primacy of movement.  Human movement, of course, involves an interplay of the "and" and the "or".  When we walk, we dig our feet into the ground, attempt in a sense to push the ground back, and use that force to propel us forward.   The pressure that our feet experience is in fact caused by the repulsive force between the electrons on the ground and those on our feet (two negatively charged particles repelling each other).  It is, in fact, the repulsive force of these electrons that prevent us from falling into the earth, and literally becoming one with the earth.  In any event, we see the presence of the "and" as we dig our feet into the ground, trying to achieve unity with it, and the presence of the "or", as we use the pressure and the repulsive force of these similarly charged particles to draw ourselves away from where we were and towards a new place.  As we continue walking,  we will continue to come into contact and draw away from the earth to which we are anchored.   During this process, we also come into contact with air molecules (this coming to to contact with is the  "and"), they bounce off us (the or) and we continue moving until we reach our destination.
Movement in general, it seems, is very fundamental to who we are.  During the first 80 to 90% of our history we were nomadic hunter gatherers, and the incorporation of the "and" and the "or" into our daily lives undoubtedly put us in greater touch with our environment.   It has only been during the last 5000 or so years that we have attempted to become permanently routed to an address, perhaps denying the "or" of our nature and nature in general.  Our cats and dogs and virtually all animals are wanderers at heart.  In our quest to deny this fundamental aspect of who we are, we have leveled forests and built cities.  What is tragic is that in our quixotic quest to extinguish our nomadic nature, we have extinguished the diversity that nature took billions of years to create.   Which of course is not to say that it is unnatural to have a home. Birds have nests. Snails have shells (and look how far that has got them!!).   But building permanent settlements or homes is a relatively recent development.