He's not just any 81-year-old, obviously. An ex-pro.
http://amber-hall-y2ff.squarespace.com/bio/
http://www.epiphone.com/News/Feature...Interview.aspx
There are probably dozens (100s?) of old session players out there you never heard of who could blow us all away in their 80s.
It's good to know your chops needn't fade with age!