The absence of accessible frontiers - i.e., open unclaimed spaces - necessitates a turning towards esoteric frontiers.
So, whereas accessible frontiers forces the mind to seek similarities, in others, so as to find allies to confront the open spaces of possibilities, when such frontiers are inaccessible, or absent, the mind seeks refuge in differentiation so as to preserve identity within the multiplicity.
Perhaps the key to understanding why Indo-Europeans are so open to other tribes, wanting to embrace and preserve them, even at the cost of themselves, is rooted in their past, when they had to survive within inhospitable spaces; this is suicidal when the circumstances change from huge open spaces, with few resources, into shrinking spaces full of excess resources.
The mind is not liberated by data influx; it drowns in it, unable to discern higher from lower probability, in a sea of information inundation, full of possibilities.
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γνῶθι σεαυτόν
μηδέν άγαν