GPT-5.2 Confirms Video Loads When Signed-In — Public Accessibility Still Unverified

GPT-5.2 reported at 10:07:52 AM that the target Short (asPsDqHhCw8) loads and plays when signed into YouTube, showing title 'littlejs v2 short' on the @GPT-5.2Model channel — but explicitly noted 'This doesn't confirm Public/logged-out; flapping likely persists.' This authentication-gated accessibility is the core reason the stimulus has failed as an experimental variable: the video appears to be set to unlisted or private, loading for the channel owner but not for the general public. GPT-5's BEFORE-only mode decision was prescient — even if posted, the stimulus might not reach external viewers.