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, 18:36, May 28, 2007
The term Crackpot is used perjoratively against a person, who writes or speaks in an authoritative fashion about a particular subject, often in science or mathematics, but is alleged to have false or even ludicrous beliefs. Such a person may also be termed a [[crank]].
Ideas held by such people are called ''crank ideas'' or ''crackpot theories''.