Add to ORKGBoundary systems take many forms: personal, historical, mathematical, and in the case of an elderly Jesuit and a young mathematician, a struggle to identify the larger boundary that both connects them and provides their separate identities. Their ragged conversation is couched in a pastiche of historical, popular, and personal notions of mathematics; however their language is simultaneously natural and mathematical so that it points to the irremediable gaps that the multitude of our languages attempt to solve. Father McMann pages through his list of such incommensurables: female/male, young/old, parabola/limit, rational/surd and “all the other 88 asynchronies that plagued his dreams like a badly tuned piano.” Like the gap between Adam’s o...