I doubt it too.. Jeanne Clement set the precendent on documenting longevity. Will someone live longer? I think so. Especially as technology grows at the rate it is. And I think documentation now is much more detailed than it was even at the turn of the century.
It's actually amazing when you think about it. For all these technological advancements we've made over the centuries (and millennia), the average life span hasn't increased by all that much (relatively speaking). I think life span is based on a variety of factors, some of which we might not really know about. When I was living in Ecuador, there was a small town nearby where the people typically lived to be quite old. Perhaps something in the water?
Ukraine's 'oldest man' turns 116 http://news.bbc.co.uk/2/hi/6454317.stm ...It was only at the age of 100 that he retired from working as a farm labourer... ...Hryhoriy, who still has a full head of hair, says that being single has kept him feeling young.He recommends a diet of milk, cheese and potatoes as well as the occasional shot of vodka. ...The famously long-lived people of the Talysh Mountains are now said to be dying younger http://news.bbc.co.uk/2/hi/europe/8550374.stm It seems to happen worldwide
I always think it is a little funny when the media interview old people and ask them what their secret is. I think it is even funnier when they get answers like a shot of vodka or a cigar a day.