Just as surgeons once believed pain was good for their patients, some argue today that death brings meaning to life. But given humans rarely live beyond a century – even while certain whales can thrive for over two hundred years – it’s hard not to see our biological limits as profoundly unfair. No wonder then that most people nearing death wish they still had more time. Yet, with ever-advancing science, will the ends of our lives always loom so close? For from ventilators to brain implants, mo