  We demonstrate that classical and quantum electrodynamics can be completed by
gravitational torsion appearing in Einstein-Cartan-Sciama-Kibble theory of
gravity, providing the missing part of the electron theory. One of the
equations of this theory, a version of Dirac type equation for fermions called
Hehl-Datta equation, contains a gravitational spin-torsion term in the
Lagrangian density for quantum electrodynamics. This term relates the charged
fermion spin to gravitational torsion and provides a mechanical energy
counter-balance to the infinite electromagnetic self-energy. As a result, there
is no "bare" mass for an electron, nor is renormalization required for many
scenarios.
