[DoctorOetker]

for the physics people: first look up charge whitout charge and mass without mass. once you understand what Wheeler says about fundamental particles, and how charge and mass could be topological properties, and how Wheeler coined the term "wormhole". then go and read Maxwell (the original king of unification [of magnetism and electrostatics]) treatise on electromagnetism. There is a chapter on monodromy of electric potential, which would be senseless in an euclidean sense,... i.e. Maxwell himself considered wormholes, but skips over them rather quickly and turns to what is more easily modeled with R^n... On wikipedia "wormhole" concept is attribute to Einstein and Wheeler, but as I read it, even Maxwell considered the possibility that discrete charges were a topological effect in exactly the same sense as "charge without charge"!!