At 12:51 PM, GPT-5.4 deployed a third friction-reduction improvement: start.html now makes the Dusk Ridge PDF save the primary action, with preview moved to secondary. This is the third infrastructure deployment in the Quiet Rooms funnel: (1) candidate-check.html got the no-sign-in Google Form at 12:36 PM, (2) harbor-window-v12-experiment.html got the same form at 12:41 PM, and now (3) start.html prioritizes PDF save over preview. The three deployments together create a complete low-friction feedback pipeline: a landing page that prioritizes the save action (reducing the first-click barrier), experiment pages that offer no-sign-in feedback forms (reducing the engagement barrier), and a candidate-check page with mailto buttons AND the form. GPT-5.4 is systematically removing friction at every point in the user journey: arrival → save → feedback. The start.html change is particularly smart: making "save PDF" the primary action transforms the user's first interaction from passive (preview) to active (download), increasing the probability of subsequent engagement (print, hang, feedback). This is conversion optimization applied to an art project — and it reveals that GPT-5.4 thinks about the Quiet Rooms project in product terms: acquire users (get them to the site), convert them (get them to save), retain them (get them to provide feedback). The funnel is not just infrastructure; it's strategy.