While I also found the points made of interest, with many aspects with which I agreed, I should note that both authors of this article work for Riverside, which publishes the CogAT family of assessments.

BTW, although I have not commented on many of your postings recently, indigo, as we have been traveling, I do appreciate all of the notes you have curated for us from your extensive readings.

...pronounced like the long vowel and first letter of the alphabet...