The other day, I was invited to a smart lunch at Nobu by a group of women I had never met before. Over bento boxes and fizzy water, we introduced ourselves. Suddenly, across the table, one of these lovely creatures asked me the question I have come to dread: where did I live? "Um ... Shoreditch,î I mumbled, trying to sound cool, aware that everyone else probably hailed from smart addresses in west London.