First-class mail volume has already collapsed by more than half since the 2006 peak — and this July 4th weekend, every one of USPS's ~31,000 post offices goes dark simultaneously. For rural Americans waiting on prescription deliveries, paper Social Security checks, or legal notices, a 3–4 day blackout isn't a minor inconvenience; it's a gap that no app can fill. The pressure to cut delivery days permanently makes this holiday closure a preview of what permanent reduction could look like.