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STEM / AI frequency implant
STEM interfaces with Grey's nervous system through frequency matching — it reads and writes his 72-band motor control vector. The healing machine uses the same interface.
AI takeover / Frequency hijack
STEM's takeover is a frequency layer shift — it overwrites Grey's bands with its own signature. The Observer detects the hijack by measuring harmonic drift.
"Everything is science fiction, until it is just science."
72 Sci-Fi Doors — Band 60