  In [1] we gave a precise holographic calculation of chaos at the scrambling
time scale. We studied the influence of a small perturbation, long in the past,
on a two-sided correlation function in the thermofield double state. A similar
analysis applies to squared commutators and other out-of-time-order one-sided
correlators [2-4]. The essential bulk physics is a high energy scattering
problem near the horizon of an AdS black hole. The above papers used Einstein
gravity to study this problem; in the present paper we consider stringy and
Planckian corrections. Elastic stringy corrections play an important role,
effectively weakening and smearing out the development of chaos. We discuss
their signature in the boundary field theory, commenting on the extension to
weak coupling. Inelastic effects, although important for the evolution of the
state, leave a parametrically small imprint on the correlators that we study.
We briefly discuss ways to diagnose these small corrections, and we propose
another correlator where inelastic effects are order one.
