GPS: How the Military Built Your Fitness Tracker

An exploration of how GPS evolved from $12 billion military infrastructure designed to guide nuclear missiles into the civilian technology that tracks your morning jog, navigates your pizza delivery, and ensures you're never more than 200 metres from an argument about which restaurant to visit. 🎧 Love the show? Help us improve in 2 minutes: https://tally.so/r/nr1evM When a young project manager at Macro Improbability Solutions suggests in 1993 that satellite positioning might be useful for civilians—proposing applications like turn-by-turn navigation, location-based advertising, and fitness tracking—his presentation lasts exactly seven minutes before being filed under "Impractical Civilian Applications." Years later, rival company Quantum Improbability Solutions builds billion-dollar industries from every idea he proposed, whilst his former employer converts their archives into parking spaces. We examine the science of atomic clocks shouting the time at Earth, why Einstein's relativity corrections are mandatory for navigation, and how MapQuest's era of printed directions proved humans wanted computer-calculated routes—they just needed the computer in the car with them. AI Transparency: In a universe of AI-generated content, we believe in being transparent about what's human and what's not. Your time is valuable, and you deserve to know what you're experiencing. The narrator, David, is a professional voice actor who has digitized his voice through ElevenLabs' voice cloning technology and is fairly compensated for his vocal performance. Thumbnails are created with OpenArt AI, and music/sound effects come from Pixabay (which are generated by human artists). Everything else-the writing, jokes, research, sound editing, and interdimensional coffee consumption, is 100% human-made by a human.