''Coincidance: A Head Test'' is a 1988 book by

Robert Anton Wilson Robert Anton Wilson (born Robert Edward Wilson; January 18, 1932 – January 11, 2007) was an American writer, futurist, psychologist, and self-described agnostic mystic. Recognized within Discordianism as an Episkopos, pope and saint, Wilson ...

, published in 1988 in the United States. It consists of series of essays in four parts prefaced by a foreword from the author. It covers familiar Wilson territory such as the writings of

James Joyce James Augustine Aloysius Joyce (born James Augusta Joyce; 2 February 1882 – 13 January 1941) was an Irish novelist, poet, and literary critic. He contributed to the modernist avant-garde movement and is regarded as one of the most influentia ...

Carl Jung Carl Gustav Jung ( ; ; 26 July 1875 – 6 June 1961) was a Swiss psychiatrist, psychotherapist, and psychologist who founded the school of analytical psychology. A prolific author of Carl Jung publications, over 20 books, illustrator, and corr ...

linguistics Linguistics is the scientific study of language. The areas of linguistic analysis are syntax (rules governing the structure of sentences), semantics (meaning), Morphology (linguistics), morphology (structure of words), phonetics (speech sounds ...

, and

coincidence A coincidence is a remarkable concurrence of events or circumstances that have no apparent causal connection with one another. The perception of remarkable coincidences may lead to supernatural, occult, or paranormal claims, or it may lead to b ...

. As explained on the back cover the title is a deliberate misspelling suggesting the "mad

dervish Dervish, Darvesh, or Darwīsh (from ) in Islam can refer broadly to members of a Sufi fraternity (''tariqah''), or more narrowly to a religious mendicant, who chose or accepted material poverty. The latter usage is found particularly in Persi ...

whirl of coincidence and

synchronicity Synchronicity () is a concept introduced by Carl Jung, founder of analytical psychology, to describe events that coincide in time and appear meaningfully related, yet lack a discoverable causal connection. Jung held that this was a healthy fu ...

" to be found within.

See also