  Typicality has always been in the minds of the founding fathers of
probability theory when probabilistic reasoning is applied to the real world.
However, the role of typicality is not always appreciated. An example is the
paper "Foundations of statistical mechanics and the status of Born's rule in de
Broglie-Bohm pilot-wave theory" by Antony Valentini, where he presents
typicality and relaxation to equilibrium as distinct approaches to the proof of
Born's rule, while typicality is in fact an overriding necessity. Moreover the
"typicality approach" to Born's rule of "the Bohmian mechanics school" is
claimed to be inherently circular. We wish to explain once more in very simple
terms why the accusation is off target and why "relaxation to equilibrium" is
neither necessary nor sufficient to justify Born's rule.
