Chapter 0: We live in the quantum 4-dimensional Minkowski space-time

Perhaps it might be a little bit too subjective to introduce the subject “Relativistic Quantum Mechanics and Quantum Fields” in this personal way. But as we see it, we should declare that we are in fact living in the quantum 4-dimensional Minkowski space-time with force-fields gauge-group structure built-in from the very beginning — why we have to study relativistic quantum mechanics and quantum fields. What we intend to show is the physics of where we live — we should not pretend to live the Newtonian classic world, not from the 21st Century onward…