Will academic-type tasks always be that easy? Probably not, but maybe. (My PG sib has, as far as I can tell, never been remotely challenged intellectually, even after multiple rounds of radical acceleration, and a career in a high-achieving STEM field.)
But will he ever be challenged in life? Yes. Absolutely. It may be worth considering changes to approach academic challenge, but even if that doesn't align with his holistic needs, or the needs or values of your family, there are other ways to build healthy challenges into his life.
