I see what you're saying, but you kinda twisted my words. I never said cut off their exposure (actually I said I wasn't suggesting severing their contact w/media all together), I said limit it. This is the sort of thing that goes without saying. If you have a child who is actually doing graphics for video games, or a computer programmer, etc., of course their exposure is going to be significantly higher. I also never said you had to do ALL of those things to be super smart and the top of your class. I said "how many kids do you know who DO ALL of those things are known to watch MTV (or TV in general)? Probably not that many.
I'd like to add that I've noticed a decline in English skills, even super smart people who have always had impeccable grammar, spelling, etc., the more time they spend online or on their phones. Doctors, surgeons, and even.... websites (done by a computer programmer!!!) ;)
And I didn't take your comment in a snarky way. Healthy discussion is good :)