There is a reaction scale: At the low-end of the sinosoid trench is the reaction: like a chemical reaction: not "reactionary" particulates, but the sum reaction: in 'class structure', the lowest classes [not in total privation and destitution like slavery, but approaching that level of poverty of well-being and willpower], these people are the most 'reactive', in terms of their approaching the cusp of total slavery: in 'race structure', this applies as well: the lower end of the trench, the more reactive: class and race structure are twain at ζ.