Can Humans Avoid Death by Old Age?

I can't remember when I first heard of Aubrey de Grey or his theories on anti-aging research or his Methuselah Foundation or his book on Ending Aging. However, I do know that thinking about his work has had a profound effect on me and led to some extremely philosophical discussions with a number of family members, friends, and colleagues. Here is an interesting talk he gave as part of the renowned TED Conference: