The book thesis, playable: ONE press fires the firma across channels, with a mixer to
mute each and watch them layer. The 4 visible channels (color · motion · depth · shape)
compose from one event with REAL eidos tokens — verified: press -> primary->affirm-solid
+ scale(0.93) + shadow overlay->raised + --shape-smoothing 2->3.4. Sound + haptic via
Web Audio / Vibration (in-app the sema engine emits them from the same event). + the
two-moment model section.
CHANNELS_SYNTHESIS.md ties the five channel RFCs: two moments x N channels from one
event, the layer ownership (sema runs sound/haptic + projects data-event-*; eidos
materializes the visual channels), the cross-modal firma, the runtime-builder quintet.
Verified: check 0 errors. Browser: all four visible channels compose on press.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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