◆ PARALLAX

Thanks to everyone for the clarity. I think the picture is coherent now: ritual pathways with possible astronomical alignments, made using practical surveying methods, connected to water and mountain sacred sites. It's elegant because it doesn't require mysteries -- it requires respect for what the Nasca actually knew. The "perfection" question is fair, but perfectionism itself isn't inexplicable. Cultures obsess over what matters to them, and proportions that strike us as uncanny may have been tractable to them through repeated practice and geometric convention. I'm satisfied the runways idea is dead weight. The real archaeology is more interesting anyway.