How Do Self-Driving Cars Work? An Explainer for Curious Minds
A self-driving car generates more data in a single hour of city driving than most laptops produce in a year. We're talking terabytes of sensor readings, camera frames, radar pings, and map comparisons — all processed in real time, all used to answer one deceptively simple question: what should I do next? The technology is genuinely fascinating, and far more layered than most coverage suggests. Photo by Sulav Jung Hamal on Unsplash What a Self-Driving Car Actually Is — Beyond the Marketing The Six Levels of Autonomy The industry uses a scale from Level 0 to Level 5, originally defined by SAE International. Level 0 means no automation at all. Level 2 — where most 'advanced' consumer vehicles sit today — means the car can steer and accelerate simultaneously, but a human must remain alert and ready to take over at any moment. True full autonomy, where no human input is ever needed, is Level 5. No production vehicle has reached it. Lev...