-Analysis- MADRID — The first time I had a clear notion of our fragility was in the cave of Nerja. That is where the skeleton of Pepita, a young woman who died in 6,000 BC, is preserved. She died of a simple ear infection at the age of 20. That visit as a child left me with a fascination for caves and an irrational fear of ear infections. For the latest news & views from every corner of the world, Worldcrunch Today is the only truly international newsletter. Sign up here. I remembered Pepita when I heard about Tina, who lived long before her. Tina’s story has been reconstructed from a cranial …