Physiology, Natural Selection, Life
In looking at basic physiology. If we assume that natural selection affects the inheritance of not only traits, but knowledge, interaction, communication etc. – Then it is safe to suggest that everything is just one thing.
The way we train, live our lives, the fears that influence us, the incapabilities, imbalances, skill development, brain patterning mapping… all of it is defined by a core and unified definition of ourselves.