  The Everett interpretation of quantum mechanics divides naturally into two
parts: first, the interpretation of the structure of the quantum state, in
terms of branching, and second, the interpretation of this branching structure
in terms of probability. This is the second of two reviews of the Everett
interpretation, and focuses on probability. Branching processes are identified
as chance processes, and the squares of branch amplitudes are chances. Since
branching is emergent, physical probability is emergent as well.
