  A non-collapse scenario for ``conscious'' selection of a term from a
superposition was proposed in quant-ph/0309166: thermally assisted tunneling of
neuronal pore molecules. But ``observers'' consisting of only two neurons
appear to be at odds with Born's rule. In the present paper, an observer is
assumed to possess a large number of auxilliary properties irrelevant for the
result of the measurement. Born's rule then reduces to postulating that, prior
to the result becoming conscious, irrelevant properties are in an entangled
state with maximum likelihood, in the sense that phase-equivalent entanglements
cover a maximal fraction of the unit sphere (leading to equal-amplitude
superpositions).
