When will science be able to prove human aging can be repaired?
Science already knows that human aging can, in principle, be repaired just as it knows that aging of any other organism can, in principle, be repaired. What I mean by "in principle" is simply that aging is known now to be not programmed into the body. As one of my colleagues Lynn Hayflick put it some years ago, he said, that aging is a product of evolutionary neglect, rather than evolutionary intent. So, what that means is that we don't have genes that cause us to age, it's just that we don't have good enough genes to stop us aging. We have lots of genes that make us live as long as we do, and the process of combating aging is essentially a process of augmenting what we naturally have so that we're even better at not aging than we are already. So, that means that it's really just a technological advance. The human body is simply a machine that needs better maintenance. And better maintenance by definition is possible, and therefore, the combating of human aging is possible.