Talk:Life expectancy

It would be good to have a little more explanation about the exact calculation of the statistics, and also the upper limit issue. These things may not be so clear to novices... I will try to add some things in the next week. Also, i think we should give some actual numbers, to illustrate (a) change over time and (b) differences between regions/countries. --Martin Baldwin-Edwards 19:55, 29 May 2007 (CDT)