What is quantum physics? -- Quantum measurement and its consequences -- Application: quantum data encryption -- Quantum behavior and its description -- Application: sensing gravity with quantum interference -- Quantum possibilities and waves -- Milestones and a fork in the road -- Bell tests and the end of local realism -- Quantum entanglement and teleportation -- Application: quantum computing -- Energy quantization and atoms -- Application: sensing time, motion and gravity with quantum technology -- Quantum fields and their excitations -- Lingering questions and awkwardness