Carnac: 3,000 standing stones in rows and not a single coherent explanation after 200 years of trying

I grew up about 90 minutes from Brittany and visited Carnac three times before I started actually paying attention to what I was looking at. The alignments — Le Menec, Kermario, Kerlescan — are rows of standing menhirs stretching for kilometers. Nearly 3,000 stones still standing, probably double th……