Part II — How to Think Like a Quantum Engineer
You already know how to build software from parts you cannot fully see into: you trust the compiler, the OS, the network stack, because each layer has a contract. Quantum engineering asks you to build the same discipline on top of a substrate that behaves nothing like the one your intuition was trained on. This part installs the mental model before any mathematics arrives. Each of the twenty-one ideas below is small on its own; together they form the lens through which every later chapter — circuit, decoder, compiler pass, research paper — will be read. Read them slowly, and test each one against something you have shipped.