  The purpose of this book is to explain Quantum Bayesianism ('QBism') to
"people without easy access to mathematical formulas and equations" (4-5).
Qbism is an interpretation of quantum mechanics that "doesn't meddle with the
technical aspects of the theory [but instead] reinterprets the fundamental
terms of the theory and gives them new meaning" (3). The most important
motivation for QBism, enthusiastically stated on the book's cover, is that
QBism provides "a way past quantum theory's paradoxes and puzzles" such that
much of the weirdness associated with quantum theory "dissolves under the lens
of QBism".
  Could a non-technical book that almost fits in your pocket really succeed in
resolving the notorious paradoxes of quantum theory? I believe the answer is:
not in this case. There are three primary reasons. Firstly, the argument that
QBism solves quantum paradoxes is not convincing. Secondly, it proves difficult
to pin down exactly what QBism says. Thirdly, as a scientific theory QBism
seems explanatorily inert, which is maybe why the topic of scientific
explanation is not broached. Sections 2-4 below discuss each of these problems
in turn. However, there is still a wealth of insights that make this book a
worthwhile read, and I shall begin with those.
