Maybe Older Doesn't Mean Senile After All

On p. 13 of this North Carolina State University Engineering publication is an article about a recent study that discovered that older engineers (at least into their 40s) actually improved in skills at least into their 40s, and that "programmers 37 and older compared to programmers younger than 37 regarding technologies less than ten years" (such as iOS and Windows Phone 7) was actually superior.  For other technologies, there was no statistically significant difference between younger and older engineers.  Now, if only that mattered at hiring time....