Can humans live forever?
“I don’t want to achieve immortality through my work. I want to achieve it by not dying.” So said American director Woody Allen. We’ve been raised with the belief that death is inevitable, so we must consider the legacy of what we’ll leave behind. But what if you had unlimited time to pursue your life’s work? What if you didn’t have to die? The idea of living forever might seem like one that’s limited to fairy tales, particularly if you were born in 1800, when the average life expectancy was 35 years [source: Sieberg]. Now, though, men in the U.S. have a life expectancy of 75 years; women, 80 [source: