  We analyze the recent numerical computations made by Fabricius, L{\" o}w and
Stolze to show that the long time behavior of the zz correlation function of
the spin 1/2 XXZ chain at $T=\infty$ is very well fit by the formula
$t^{-d}[A+Be^{-\gamma (t-t_0)}\cos \Omega(t-t_0)]$ where $d$ is substantially
greater than 1/2. This confirms the conclusion that there is no spin diffusion
in this model.
