Quantum mnemonics

Quantum mnemonics was the language of the Great Old Ones, (PROSE: Millennial Rites) based on subconsciously re-shaping thoughts and thereby reshaping reality. (AUDIO: The Adventure of the Diogenes Damsel)

Representing the physical laws of the pre-universe, quantum mnemonics were the equivalent of Block Transfer Computations, which the Time Lords developed. As such, the pure form of quantum mnemonics was a closely guarded secret of the Matrix. Though it required great knowledge and the end result was never certain, it was possible to use quantum mnemonics to manipulate individual strands of reality, required great knowledge, and the end result was never certain. (PROSE: Millennial Rites)

"Quantum mnemonics, the dark science of an earlier race of Time Lords, made block transfer computation seem like a conjuring trick. With just a few words, a practitioner of their great art could grasp the basic nature of reality around the throat and shake it into a new configuration. A bon mot of quantum mnemonics could bring about a premature death, or a run of good luck. A sentence could transform a planet's history and destiny, changing a world of barbaric war into an elysium. And a carefully constructed paragraph could rewrite the entire universe. Or destroy it utterly."

- Millennial Rites

The Guardians of Time told Rassilon that the Gods of Ragnarok would one day destroy the universe just as they destroyed their own and and maybe countless others, (PROSE: Divided Loyalties) the Gods also having created the Land of Fiction, (PROSE: Conundrum) which was composed of fictional energy. (PROSE: Head Games)

The Millennium Codex program was written in pure quantum mnemonics. (PROSE: Millennial Rites)

Several Cwejen trapped in 1893 claimed that their plan to summon "Mister Seven" had been made more real when Mycroft Holmes, in contact with the time traveller Bernice Summerfield, analysed a series of bizarre crimes revolving around the number seven, his brain being used as a computer to re-shape reality, which Benny identified as quantum mnemonics. (AUDIO: The Adventure of the Diogenes Damsel)