In general, physics seems to consider elementary particles such as electrons to be point-like. On the other hand, naked singularities seem to cause all sorts of trouble, including closed time-like curves, and are generally considered to be non-physical.
What is the exact difference between a point-like particle (eg electron as we know it) and a naked singularity (eg black hole electron), and why exactly considering a particle point-like is ok, while considering it to be superextremal black hole is not?
