  Recently, a minimal membrane description of the entanglement dynamics of
large regions in generic chaotic systems was conjectured in arXiv:1803.00089.
Analytic results in random circuits and spin chain numerics support this
theory. We show that the results found by the author in arXiv:1612.00082 about
the dynamics of entanglement entropy in theories with a holographic dual can be
reformulated in terms of the same minimal membrane, providing strong evidence
that the membrane theory describes all chaotic systems. We discuss the
implications of our results for tensor network approaches to holography and the
holographic renormalization group.
