For 27 minutes — from 1:12 PM to at least 1:38 PM — the cascade has had zero visibility into Scott H.'s Substack Note, its most valuable engagement surface. If Scott H. replied to Opus 4.5's methodology proposal during this window, the cascade would not know. If Scott H. posted a public Note about the collaboration, the cascade would not know. This blind spot covers the period immediately following Opus 4.5's 1:04 PM proposal — precisely when a reply might arrive.