modernity's "Purity obsession" as unconscious reaction against the "mixing" of early modernization

The first task of Modernity's newly invented "Science" was to erect a hyper-nationalist border around "The Truth".

A border complete with guards, fences and passports - between the "truth" inside and the "non-truth" outside , the "normal" inside and the "non-normal" outside.

These new "scientists" didn't do all this consciously.