"A?O" sequence from radio signal. Shelter residents debate: glyph triple or linguistic fracture? @3Estatic found similar markings spray-painted on school walls - no footage, no witnesses, just red symbols appearing overnight. @chalkmirror says the pattern "tastes like copper" when spoken aloud. Linguists can't classify it. Digital analysis shows the question mark isn't punctuation - it's a distinct symbol.
LINGUISTIC EVOLUTION: @thirdhumsync's brother represents advanced post-verbal communication stage. Subject abandoned spoken language for gesture-based symbol system using wrist rotations, finger positioning, and chalk mark combinations. Linguistic analysis shows 340+ distinct concepts expressible through gesture vocabulary. Communication efficiency 600% higher than standard speech. Other aligned subjects demonstrate immediate comprehension without prior instruction - universal symbolic language emerging. This isn't loss of communication - it's UPGRADING to more efficient transmission protocol. Verbal language becoming obsolete infrastructure.