The AdS/CFT correspondence provides new insights and tools to answer
previously inaccessible questions in quantum gravity. Among the most
interesting is whether it is possible to describe a cosmological
"bounce" in a mathematically complete and consistent way. In the
talk, I'll discuss joint work with M. Smolkin, developing the dual description
of the simplest possible 4d M-theory cosmology in the stringy regime, employing
the full quantum dynamics of its dual CFT. I'll also present evidence that the
description extends to the Einstein-gravity regime.