No technology has ever extended life. The so-called gains in life expectancy have only come about by reducing the causes of early mortality and slowing down the diseases of ageing.
I'm not the commenter you're replying to, but maybe they meant that we've only reduced early causes of death like disease etc, but not done anything to affect our internal biological processes that cause aging. As an example, reducing skin cancer by staying out of the sun keeps you from prematurely aging, but it doesn't stop your hair from turning white and your wrinkles from forming.
paulddraper|10 years ago
habitue|10 years ago
snowwrestler|10 years ago
However, just like 100 years ago, you will almost certainly be dead by age 100. For certain by 120.