Do younger runners have what it takes?

Apparently not, or at least according to this article. While "us" youngsters have not improved much in the past 30 New York City Marathons, the "old folks" (65+ for men and 45+ for women) have consistently gotten faster. For example, men in the 65-69 category improved by15min, while women in the 55-59 age group improved by over 40min. These faster times are attributed, at least in part, to an increase in the number of "older" runners (up 15+ percent for both males and females).