text: Academic @Penn Psychologist @angeladuckw, author of the book Grit, suggests that raw talent may be overrated. If so, then what does it take to be a great athlete, or to be great at anything? @chucknicecomic, @mythreeleftfeet, and I search for answers.
  
  [Video: 4 min 17 sec] https://t.co/t5hpy4xwv9