Yet another instance of hackerdom' s peculiar attraction to mystical references - a common humorous way of making exclusive statements about a class of things.The template is from the "Tao te Ching": "The Tao which can be spoken of is not the true Tao."The implication is often that the X is a mystery accessible only to the enlightened.See the trampoline entry for an example, and compare {has the X nature}.[Jargon File]