  An analysis is made of Deutsch's recent claim to have derived the Born rule
from decision-theoretic assumptions. It is argued that Deutsch's proof must be
understood in the explicit context of the Everett interpretation, and that in
this context, it essentially succeeds. Some comments are made about the
criticism of Deutsch's proof by Barnum, Caves, Finkelstein, Fuchs, and Schack;
it is argued that the flaw which they point out in the proof does not apply if
the Everett interpretation is assumed.
  A longer version of this paper, entitled "Quantum Probability and Decision
Theory, Revisted", is also available online.
