It's funny goodluck http://egotastic.in.net/ egotastic all-stars photos  Vaupel and his demographic colleagues have fierce critics. Surely, they argue, it won't be as easy to push life expectancy from age 77 to above 100 in the 21st century as it was to go from 47 to 77 in the 20th. Maybe many of the easy medical advances have been achieved. Maybe the human body has a natural limit. Maybe obesity will sabotage health gains.