The status of the heterotic string

High energy physics is, at present, in an unusual state. It has been clear for some time that the authors have succeeded in achieving many of the original goals of particle physics. The authors constructed theories of the strong, weak and electromagnetic interactions. The ''standard model'' has been remarkably successful and seems to be an accurate and complete description of physics, at least at energies below a Tev. Indeed, as we have heard in the experimental talks at this meeting, there are at the moment no significant experiments that cannot be explained by the color gauge theory of the strong interactions (QCD) and the electro-weak guage theory. New experiments continue to confirm the predictions of these theories and no new phenomenon has appeared