Because he doesn’t know that now, what does it do to change anything having to do with it today? Nothing. In the military, a commander who thinks he knows everything or worse professes to, is more dangerous to his troops than the enemy. Any officer is only as good as his senior NCO’s.
I earned my position in my trade not because I could memorize a book three semesters before I intended to take the class. In some cases I did not take the class but Cleped it instead. I categorized what I needed to remember to quickly find an answer to a question. I don’t consider myself as “smart” but instead rely on my “smart books” to catalog the knowledge I need when I need it. And yes, even at 3:00 AM.
Like I said in my first sentence. Differences are far too large to be settled.