Quantum mnemonics

Quantum mnemonics, the equivalent of Block Transfer Computations, was the language of the Great Old Ones and represented the physical laws of the Pre-Universe. Their pure form was a closely guarded secret of the Matrix.

This language could rewrite reality or create and destroy universes, which explained the Gods of Ragnarok's having created and destroyed many universes (MA: Divided Loyalties) including the Land of Fiction. This may mean its fictional energy is also formed from quantum mnemonics. (NA: Head Games)

The Millennium Codex program was written in this language. (MA: Millennial Rites)

Several Cwejen trapped in the 19th century claimed that their plan to summon "Mister Seven" had been made more real when Mycroft Holmes and Bernice Summerfield analyzed a series of bizarre crimes revolving around the number seven; Bernice noted that this was consistent with quantum mnemonics. (BFBS: The Adventure of the Diogenes Damsel)