  Fast scrambling is a distinctive feature of quantum gravity, which by means
of holography is closely tied to the behaviour of large$-c$ conformal field
theories. We study this phenomenon in the context of semiclassical Liouville
theory, providing both insights into the mechanism of scrambling in CFTs and
into the structure of Liouville theory, finding that it exhibits a maximal
Lyapunov exponent despite not featuring the identity in its spectrum. However,
as we show, the states contributing to the relevant correlation function can be
thought of as dressed scramblons. At a technical level we we first use the path
integral picture in order to derive the Euclidean four-point function in an
explicit compact form. Next, we demonstrate its equivalence to a conformal
block expansion, revealing an explicit but non-local map between path integral
saddles and conformal blocks. By analytically continuing both expressions to
Lorentzian times, we obtain two equivalent formulations of the OTOC, which we
use to study the onset of chaos in Liouville theory. We take advantage of the
compact form in order to extract a Lyapunov exponent and a scrambling time.
From the conformal block expansion formulation of the OTOC we learn that
scrambling shifts the dominance of conformal blocks from heavy primaries at
early times to the lightest primary at late times. Finally, we discuss our
results in the context of holography.
