sentences:  Metacomputing is also a useful descriptor for self-referential programming systems.Often these systems are functional as fifth-generation computer languages which require the use of an underlying metaprocessor software operating system in order to be operative.Typically metacomputing occurs in an interpreted or real-time compiling system since the changing nature of information in processing results may result in an unpredictable compute state throughout the existence of the metacomputer (the information state operated upon by the metacomputing platform).