I think that future humans are going to look back at this period now, and see it as a very, very primitive time. I think they're going to go: "My God, people used to live into their 70s, and then they died of horrible diseases at that young age, and children were just the problem of this random meeting of sperm and egg. This is really strange."

Gregory Stock, diretor do programa de Medicina, Ciência e Tecnologia da UCLA, em entrevista.