How much of history (personal, collective) is really, irretrievably lost?
What Song the Syrens sang, or what name Achilles assumed when he hid himself among women, though puzzling Questions are not beyond all conjecture.
--Sir Thomas Browne, Hydriotaphia ch V
Don't you wonder what song they sang? Until I read this I don't think I wanted to know, but oh, the introduction of possibility -- of this literal note into something I had thought of as completely literary -- how to say it? It troubles my sleep...