  Although electrons (fermions) and photons(bosons) produce the same
interference patterns in the two-slit experiments, the description of these
patterns is markedly different. Photons are spin one, relativistic and massless
while electrons are spin 1/2 massive particles producing the same interference
patterns. In spite of these differences, already in early 30ies of 20ieth
century the isomorphism between the source-free Maxwell and Dirac equations was
established. It permitted us to replace Born probabilistic interpretation of
quantum mechanics with the optical. In 1925 Rainich combined source-free
Maxwell equations with Einstein's equations for gravity. His results were
rediscovered by Misner and Wheeler in their "geometrodynamics". Absence of
sources in it remained a problem until Ranada's work. His results required the
existence of null electromagnetic fields absent in geometrodynamics. They were
added later on by Geroch. Ranada's solutions of source-free Maxwell's equations
came out as knots and links. In this work new proof of knotty nature of the
electron is established. The obtained result perfectly blends with the
descripion of rotating and charged black hole.
