I left the intellectualising at Uni some years ago. Jolly's post put me more in mind of why adults aren't the same way.
Example - having studied literature, I use 'flashy' words now and again when speaking without meaning to, it just happens. Only once in my life has someone stopped me and said 'Sorry, what does that word mean?' I doubt he was the only one, but credit to him for saying something. I guess it was pride from the others that stopped them from asking (or maybe they didn't care, and some people have this thing nailed too!)
Over thinking is not a positive thing for me, and unless academia becomes your life, it may not be for you (in the general sense) either.... The more I learn, the less I feel confident I understand and the more I find there is to learn.