  We use results on Virasoro conformal blocks to study chaotic dynamics in
CFT$_2$ at large central charge c. The Lyapunov exponent $\lambda_L$, which is
a diagnostic for the early onset of chaos, receives $1/c$ corrections that may
be interpreted as $\lambda_L = \frac{2 \pi}{\beta} \left( 1 + \frac{12}{c}
\right)$. However, out of time order correlators receive other equally
important $1/c$ suppressed contributions that do not have such a simple
interpretation. We revisit the proof of a bound on $\lambda_L$ that emerges at
large $c$, focusing on CFT$_2$ and explaining why our results do not conflict
with the analysis leading to the bound. We also comment on relationships
between chaos, scattering, causality, and bulk locality.
