Parenthetical musing: (x,y) as grammatical form coordinates nicely with the mathematical interpretation of abscissa and ordinate. When one considers the root etymology of each (abscissa from abscind, i.e. cut off, tear away, ordinate from ordained, i.e. destined, appointed), as well as of parenthesis itself (to put in beside), it seems a grammar appropriate to exile, as well as to the condition of finding oneself beside oneself. After all, per Pope's Dunciad, none but himself can be his parallel.