Looks like we're doing child prodigies today. Check out this one:
http://www.dailymail.co.uk/news/article-2348759/Child-prodigy-youngest-member-Mensa-aged-just-TWO--smarter-Barack-Obama-David-Cameron.html
Of course, this is all supported by reliable youth IQ testing (no issues there, don't bother searching). Nothing to do with a narrative.