  It is suggested that the "B" in QBism rightfully stands for Bohr. The paper
begins by explaining why Bohr seems obscure to most physicists. Having
identified the contextuality of physical quantities as Bohr's essential
contribution to Kant's theory of science, it outlines the latter, its proper
contextuality (human experience), and its decontextualization. In order to
preserve the decontextualization achieved by Kant's theory, Bohr seized on
quantum phenomena as the principal referents of atomic physics, all the while
keeping the universal context of human experience at the center of his
philosophy. QBism, through its emphasis on the individual experiencing subject,
brings home the intersubjective constitution of objectivity more forcefully
than Bohr ever did. If measurements are irreversible and outcomes definite, it
is because the experiences of each subject are irreversible and definite.
Bohr's insights, on the other hand, are exceedingly useful in clarifying the
QBist position, attenuating its excesses, and enhancing its internal
consistency.
