Quantum computing gets talked about like it's already solved everything from drug discovery to cracking every password on Earth. It hasn't. It also isn't nothing. The truth is more interesting than either extreme, and understanding it doesn't require a physics degree — just a willingness to let go of a couple of intuitions that don't hold up at very small scales. The one idea that actually matters: superposition A classical bit is a light switch: on or off, 0 or 1, one state at a time. A quantum bit — a qubit — can exist in a combination of both states at once, until it's measured. This isn't a metaphor for "it's really fast" or "it tries everything at once," which is the version that gets oversimplified into magic. It's a real physical property of quantum systems, and it comes with a real cost: the moment you measure a qubit, that combination collapses into a single definite answer, 0 or 1. You don't get to peek at the su...