21st Century
                          Relativity
                           A Primer
                              by
                    Salvatore Valentino II

                            Index

About the Author                                             3
Introduction                                                 5
The Mobius Transform                                         7
Geometry of the Gudermannian                                21
The λ 6-Group                                               31
The Cosmic Speed Limit                                      39
The Cosmic Speedometer                                      45
The Myth of Relativistic Mass                               57
Maxwell's Equations                                         63
Appendix                                                    67
Ruler and Compass Graphic                                   69
Conversations with AI                                       71
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