I think to answer that question you need to understand how human beings bring together their brains and enable their ideas to combine and recombine, to meet and, indeed, to mate.
Em sembla que, per respondre aquesta pregunta, heu d'entendre com som capaços els éssers humans d'unir els cervells perquè les idees es combinin i recombinin, es trobin i, de fet, s'aparellin.