In the 20th century, we began to die slowly—from our own biology, rather than plagues or predators. Fast deaths are now the exception, not the rule. Today, some 45 million deaths a year owe to biological aging, and we treat these deaths as mostly inevitable. But what if they are not? What if preventing our newly slow deaths is a moral and economic imperative? Drawing on interviews with 102 scientists and original economic modeling, Dr. Romanni-Klein reveals why advancing progress in the young science of agi ...