Standing on the ferry as it waits to dock on the Greek island of Ithaca, Giorgia Ongarato is only too keen to talk about the Odyssey – the epic poem about a hero battling his way back home from the Trojan War that inspired Christopher Nolan’s blockbuster film. The Italian lawyer says it was her dream to come to Ithaca, widely believed to be the same island as the home of Odysseus in the poem. Dressed in a T-shirt emblazoned with “odyssey” in ancient Greek alongside a line from the poem, she...