It is no more than the fact that statistical tables of particle counts add, exhibited in nature only when a natural object has been analyzed into superposable components by a quantum analyzer, and then reassembled by another such.
It is no more than the fact that statistical tables of particle counts add. Likewise it is odd that Feynman finds superposition "mysterious", when it is exhibited in nature only when a natural object has been analyzed into superposable components by a quantum analyzer, and then reassembled by another such.