  The Dirac electron theory and QED do not take into account gravitational
field, while the corresponding Kerr-Newman solution with parameters of electron
has very strong stringy, topological and non-local action on the Compton
distances, polarizing space-time and deforming the Coulomb field. We discuss
the relation of the electron to the Kerr's microgeon model and argue that the
Kerr geometry may be hidden beyond the Quantum Theory. In particular, we show
that the Foldi-Wouthuysen `mean-position' operator of the Dirac electron is
related to a complex representation of the Kerr geometry, and to a complex
stringy source. Therefore, the complex Kerr geometry may be hidden beyond the
Dirac equation.
