  A colloquium style review of the connections between the Sachdev-Ye-Kitaev
model and strange metals without quasiparticles, and between the SYK model and
the quantum properties of black holes. Along with other insights, this
connection has led to an understanding of the universal form of the low energy
density of states of charged black holes in asymptotically 3+1 dimensional
Minkowski space.
