I wish to draw out the waves in wheat fields idea somewhat more. To me it is obvious at first glance what is meant. But thinking the analogy through demands being explicit about a number of tricky issues, including the borders of the P-world (not a simple spatiotemporal bubble!) and the way in which the chair I meet in immediate experience is *both* collectively constituted, thus everyone’s chair, and entirely mine and mine alone.
This might be most fruitfully done within the book, when the P-world concept is first mooted, or shortly thereafter.