Shockwaves through Silicon Valley today: A new report claims Google Maps, Uber, even Wall Street, are built on a surprising foundation. The U.S. government, not private enterprise, developed the Global Positioning System, nicknamed "Lighthouses in the Sky." This federal project, often associated with military use, underpins billions in commerce daily. Just don't call it socialism, say critics. This revelation could redefine the debate on public funding for private success.