Paul Erdos was prolific into old age. I contend it is a lack of focus that prevents older people from innovating, not age: "Paul Erdos never learned to tie hi

Paul Erdos was prolific into old age. I contend it is a lack of focus that prevents older people from innovating, not age: "Paul Erdos never learned to tie his shoes, never drove a car or sliced his own piece of fruit" http://teenink.com/Past/1999/10666.html http://teenink.com/Past/1999/10666.html