  String theory provides a compact integral expression for the tree-level
scattering amplitude of an arbitrary number of light strings. We focus on
amplitudes involving a few tachyons and many photons, with a special choice of
polarizations and kinematics. We pick out a particular pole in the amplitude --
one corresponding to successive photon scatterings, which lead to an
intermediate state with a highly excited string in a definite state. This
provides a physical process which creates a highly excited string. The observed
erratic behavior of the amplitude suggests that this may serve as a simple and
explicit illustration of chaos in many-particle scattering.
