Elon Musk's DOGE helped end one of America’s most outdated government systems.Deep inside a limestone mine in Pennsylvania, the U.S. government was still processing federal retirement paperwork by hand.• Around 10,000 retirement applications were being manually processed every month.• More than 400 million paper records were stored underground.• Retirees often had to wait months because of this outdated paper-based system.• Elon Musk publicly exposed how broken the process was.Now OPM says it ha