thoughts on the future

Turning and turning in the widening gyre
The falcon cannot hear the falconer;
Things fall apart; the centre cannot hold;
Mere anarchy is loosed upon the world,
The blood-dimmed tide is loosed, and everywhere
The ceremony of innocence is drowned;
The best lack all conviction, while the worst
Are full of passionate intensity.
Surely some revelation is at hand;
Surely the Second Coming is at hand.
The Second Coming! Hardly are those words out
When a vast image out of Spiritus Mundi
Troubles my sight: somewhere in sands of the desert
A shape with lion body and the head of a man,
A gaze blank and pitiless as the sun,
Is moving its slow thighs, while all about it
Reel shadows of the indignant desert birds.
The darkness drops again; but now I know
That twenty centuries of stony sleep
Were vexed to nightmare by a rocking cradle,
And what rough beast, its hour come round at last,
Slouches towards Bethlehem to be born?

this poem is The Second Coming by William Butler Yeats, if you didn't already know. personally, i didn't until about a week ago.

then i saw the episode of angel called 'slouching toward bethlehem' and looked up the source of the name. the episode was, of course, about something big and evil on its way to destroy the world.
i didn't give it much more thought until this weekend i bought the latest harry dresden book, small favor. lo and behold, at the end of the book, a character quotes the line "things fall apart; the centre cannot hold." (although, i admit, the writer spelled it center) yes, i have been told that this line is now oft-quoted and is well known by society at large even if they don't know where it comes from.
even so... i find it somewhat odd that, having never heard of the poem or any part of it before, it appears to me twice in one week from totally separate sources. don't you think?
ok, not that i'm saying the world is about to end or anything... just that maybe we should be looking out for something weird happening? you know... like slimy green guys with horns and claws looking like they just hatched crawling up the street? or comets coming to smash the Earth to bits? or just something simple, like terrorists releasing smallpox, or setting off nuclear weapons? ...just a thought...