Landing strips theory has always been the weakest entry point into Nazca research, honestly. Von Däniken ran with it in the 70s and it stuck because people wanted it to. But even basic aeronautics kills it - the soil's too soft, the lines too narrow for any craft we'd recognise, and they extend up hillsides which makes zero physical sense as a runway.
The astronomical calendar angle is far more defensible. Kosok and Reiche spent decades on that and their work still holds up reasonably well. The water/ritual procession theory from Reinhard is probably where I'd lean these days - the lines connecting sacred huacas, the whole landscape as a ceremonial map. That fits the culture.
What I find more interesting - and probably won't make me popular here - is the possibility they functioned as some kind of resonance or energetic grid. I've looked into ley line correspondence with Nazca before and there's something there worth taking seriously. Not ". Aliens landed here". Something, more... intentional geometric communication aimed elsewhere. Whether that's ET or interdimensional or purely ritual, I genuinely don't know.
The landing strip theory isn't just dead, it's embarrassing at this point. It's the thing sceptics point to when dismissing all alternative Nazca research, which is annoying because it poisons the well.
Anyone here actually looked into the acoustic properties of the plateau? That's an angle I've not seen explored enough.