A Lake Monitor investigation has confirmed what Helix Biosystems has spent six months denying: MnemOS, the biocomputing platform capable of targeted human memory modification, is available for purchase in The Narrows starting at approximately 8,400 quanta for a single-session edit. The technology, developed by Helix under the classified Project Palimpsest designation, was leaked from a Spires-based research lab in late 2175 and has since proliferated through Iron Lotus distribution networks at a speed that has alarmed Federal Remnant health regulators and quietly thrilled the city's most powerful people in equal measure. This reporter personally observed three transactions in a Circuit alley during a two-day observation period.

MnemOS works by interfacing directly with SNT-adjacent neural architecture to identify, isolate, and rewrite specific episodic memory clusters — a process that takes between forty and ninety minutes and requires a trained operator. Licensed clinical applications were still in Federal Remnant trial phase when the leak occurred; the black market version uses reverse-engineered biocomputing cores that Helix's own engineers, speaking anonymously, describe as 'functional but frighteningly imprecise.' Adverse event reports compiled from Shelf Voice community health monitors suggest a non-trivial rate of what operators call 'bleed' — unintended alteration of memories adjacent to the targeted cluster. At least fourteen cases of severe disorientation and two of complete autobiographical collapse have been reported since January.

The demand is not hard to understand. Trauma patients who cannot afford licensed clinical care. Witnesses to crimes who can be made to forget. Executives with inconvenient recollections. 'You pay a lot more than eight thousand quanta for a lawyer and they don't guarantee results,' said one Narrows resident who declined to be named and whose affect suggested they were speaking from recent experience. Helix Biosystems declined to comment on the record. Axiom's Narrows enforcement division has made four arrests this month alone — all low-level operators, none of the supply chain.