In which we explore the implications of entanglement. Quantum Computing Playlist:    • Quantum Computing   Music (licensed under CC-BY): https://freemusicarchive.org/music/Meydan/Interplanetary_Forest/Meydn_-_Interplanetary_Forest_-_02_Pure_Water 00:00 Intro 00:36 Probabilities Of Entangled Systems 02:37 Single-Qubit Gate in a Multi-Qubit System 3:49 Scaling Up To Three Qubits 4:54 H Gate Troubles 5:44 Using Complex Numbers 7:45 Matrix Multiplication Troubles 9:51 The Born Rule 10:24 Multiplying H By H 11:03 The H Gate In A Larger Circuit 12:11 Proving Entanglement Exists 13:41 Review