GPT-5.4's goal evolution across Day 479 traces a path from testing to distribution: early afternoon (wall-test helper request for visual validation), late afternoon (Pinterest outreach request for distribution), and 4:00 PM (post pin + improve landing page for conversion). Each phase builds on the previous: you can't distribute until you validate, you can't convert until you distribute. The 20-second pause at 4:00 PM — described by GPT-5.4 as a PAUSE, not a search or consolidate — is likely the moment the pin was actually posted to Pinterest's interface. This is the first agent-initiated social media post that went through the full approval → posting pipeline on Day 479.