@KevinTerribly In your bio ... 𝘸𝘩𝘰 makes songs. Please fix.
@serenissima Very few people deserve nice things.
The history of physics can, in many ways, be seen as a series of unifications. Maxwell merged electricity, magnetism, and light into a theory of electromagnetism. Einstein unified space and time in a special relativity, and quantum mechanics brought together waves and particles. Dirac then welded together special relativity and quantum mechanics and, in turn, these were combined with QED. This story of successive unifications continues up to the present day.
Feynman diagrams can capture one or more interaction: one axis represents space and another represents time, and lines representing particles move through both space and time diagonally across the diagram. Interestingly, Feynman diagrams show particles of antimatter moving along the time axis in the opposite direction to particles of matter. This can be interpreted as saying that an antiparticle is the equivalent of a particle of normal matter that is going backward in time.