It also struck me as a writer’s after thought as to why Janet:
The reason I said nothing about this before, a realm at the atomic level, chock full of sentient life, their own little world of conflict. Well the premises was set when human beings could shrink them selves down to atom size, remain coherent entities, apparently made up of elements smaller than atoms. That said, I liked the first 2 chapters of this franchise, was willing to overlook this paradox of sorts, until they forced me to dwell on it.