well the talk was about tall vs short but the perverted mind has chaged to long vs short. short or tall , there is no clear theory of who would be successful. infact the recent research shows the shorter the people are the less likelihood there is for him to get a disease ( provided both short and tall people live in similar condition and have same life style) . The research proved the chances of getting disease is propertional to the size of the body be it lengh wise or even width wise.