One of the jokes in 'The Aleph' is that a story about a magical spot,
'probably two or three centimetres in diameter', in which it is possible
to see everything in the universe at once, should be only a dozen pages
long.
-- Thomas Jones. "Whose Borges?" LRB Blog (2 July 2015).
http://www.lrb.co.uk/blog/2015/07/02/thomas-jones/whose-borges/