Fire

It must be said, though, that the appropriation of fire was not, in itself, the creation of a tool. It is possible that the first use of fire involved the repeated use of hot embers, from fires that had occurred naturally.  Nonetheless, it is clear that the "and" had its hand in the lighting of subsequent fires, as wood would be added to these hot embers.  And the more sophisticated creation of fire that followed, from the combination of flint and steel, was a human invention in the strictest sense. It required the combination of things that did not naturally occur in nature.  In this, as in other tools, described in the last post, we see the application of the "and" to create new things, or to increase the diversity of the "or".  And fire was an important social tool.  In all primitive cultures, tribes would gather around the fire, to cook food or partake of its warmth.  Thus, fire was a crucial element of social cohesion.  Thus, we see the beginnings of another "and/or" cycle.  The combination of elements (flint and steel, embers and additional wood) leads to additional tools, or the perpetuation of the "or".  The perpetuation of the "or" creates additional social cohesion, perpetuating the "and".  This, in turn, perpetuated the development of language skills and more sophisticated brains, which were capable of developing new tools.  It can be said that all tools involve the social perpetuation of the "and", as all tools are meant to be used by other people, or to make life easier for the whole group.
At the same time, the development of tools led to more specialization, or a greater division of labor, in other words, the perpetuation of the "or".  And in the end, it led to less social cohesion, as smaller and smaller groups of people, families, single people, were now able to get by on their own.  And we have already seen that the perpetuation of the synthetic "or", led to the destruction of nonhuman species, or the destruction of the natural "or".  Cycles, cycles.