Irrelevanto

There was a young girl of the Hague
Who was so incredibly vague
She always deconstructed
Until her death obstructed
Yet still she deconstructed as she decayed.

A strange oldish fellow of Mars
Wrote odd morbid verses for hours
He spoke Esperanto
How irrelevanto
From normalcy it him debars.

{Graph of "British economy" (to -1) against "Esperanto plot" (to 2004): it's a sine wave, with a sudden halfway blip – beyond which it plunges into the axis.}