luna and the swan

a common english idiom, such as an idiom can be considered common, given their seemingly gradually decreasingly extant existence, is to express that something seemingly uncommon or rare in occurrence is equivocal to happening "once in a blue moon." a blue moon, nominally occurring once every 2 to 3 years, could indeed be used, metaphorically, to ascribe rareness to an occurrence that happens infrequently, as most of us, it could be surmised, would describe something happening less than once a year rather lacking in commonality. however, one finds that, if one were to reside in the midwestern us, the phrase may actually, instead, be interpreted differently - if one were to attribute a physical good that occurs frequently to said idiom. a quick perusal of any ice cream parlour in the midwest will almost certainly reveal an ice cream flavor described thusly as "blue moon ice cream," its blue color, of course, a seemingly intentional (or perhaps not) misinterpretation of an actual blue moon, whose astronomical occurrence has nothing to do with color. it could be said then that those events that occur once every blue moon are perhaps more common than previously assumed, as blue moon ice cream occurs on a daily basis in towns and cities throughout a handful of states. while this would be an entirely inaccurate and willfully obtuse interpretation of an idiom, one that seems fully intent to take liberty with language and use it only smarmily to make a miniscule and intentionally dishonest point, the present author would also like to point out, quickly and also haphazardly, that both the philosophical problem of deduction, and black swan theory, have statements that use language in comparatively similar ways, such as that of citing a black swan, which, as far back as 2nd century roman poet Juvenal, was considered an impossible occurrence and thus an apt metaphor for something incredibly rare. it was, of course, several centuries later that endemic populations of black swans were found in various regions of australia. it could be said then, that black swans, much like blue moons, are actually poor examples to rely on, and could be replaced with something more viable and legitimately lacking in common occurrence. given that it would require listening to the original populations of a region for a better comparison, which, in the latter case of the black swan, involves listening to residents who happen to be dark skinned and non-christian, it seems safe to assume this will not occur. through it all, nassim taleb, unfortunately, will still make money off of it.