I think this author might actually have met James before! I got this from a Babycenter.com article about spotting your grade-schooler's hidden talents:
Your child talks nonstop
Your chatty kid may have an advanced vocabulary, concoct elaborate stories, and make few grammatical or pronunciation errors, says Judy Galbraith, author of You Know Your Child Is Gifted When… She may also talk very fast and often doesn't stop until she's asleep. She wants to have the last word in every argument.