All day, I dream about sets. Matching sets, jet sets, Mandelbrot sets. A group of related objects bracketed (and therefore corralled).
I'm being a bit facetious; my tastes are more free range (though I do love fractals in all their transhemispheric glory). To have a set is to have a set of things not in the set in question, the "everything else." Therefore, it would seem a set's identity lies not in its contents or non-contents but in its inclusion/exclusion criteria. Perhaps this line in the sand is false, or at the very least, subject to change when it encounters a wind.
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