5% of the people who have ever lived are alive now. 50% of the people who have reached 65 years are alive now. [ http://www.newscientist.com/article/mg20627550

5% of the people who have ever lived are alive now. 50% of the people who have reached 65 years are alive now. [ http://www.newscientist.com/article/mg20627550.100 http://www.newscientist.com/article/mg20627550.100 ]