Found it, sorry to trouble you.
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Understanding space.
by mollwollfumble
The fly in my room understands space
Every decisecond it changes direction
And flies away from walls and towards the centre
Its pseudorandom path
Describes a footsize box about
The 3-D centroid of the room
The neutrino in my room understands space
It lives within the voids within the atoms
Its pace
Is only slightly slower than the speed of light
Born a billion years ago in supernova
It travelled past 400 galaxies to get here
The man in my room understands space
He knows the quantum foam in a way
The fly and the neutrino never can
He kens that space is metastable so
That far beyond the limit of the visible horizon
It must explode with unimaginable force