People’s increasing life spans could change everything from civil rights to globalization. Here’s why
These days people are living longer lives than ever before. Ancient Romans expected to live an average of 25 years. Today, thanks to advanced medicine and nutrition, the worldwide average is 64. In all, we will enjoy 250 billion more years of life than if we had been born a century ago. Few people, of course, would argue that’s a bad thing — but, as more and more people get older, it means that our world is about to undergo some very dramatic changes.