Save It For Robot Sea Legs

We start with a check engine light mystery and end up arguing about humanoid robots, military automation, and why redundancy exists when the stakes are high. Along the way, we bounce from O2 sensor voltage and OBD2 codes to SpaceX hype, Starlink reality, and a Costa Concordia lesson in how fast small errors become disasters. • P2270 downstream O2 sensor code and why it triggers anxiety • The strange truth that buying the part can “fix” the problem • A brief detour into trill...