I believe computers should attract a goodly proportion of the blame for the dumbing down of our youth. They are no longer interested in how things work. If something breaks, throw it away or call somebody to fix it...sigh...
With all due respect, people who are adept with computers could say the same thing about people who don't know how to use them.
I really do not see the correlation, at all, whatsoever. BTW, I am not one who is adept with computers. People who are tend to be a lot smarter, I find.
When your computer breaks down, do you fix it yourself? It's just a tool. If I couldn't read and type on this computer, I would know much less about AV. Heck, I'd know less about wood glue, how long my various foods last in the fridge, and why it hurts when I pee. J/K.
Computer programming is probably the closest thing I can think of to chess or music composition. I don't think it's coincidence that some of the best musicians I have met were extremely good at two, if not three, of the above.
Also, I don't find much correlation between the ability to know how to build a home, and the incentive to learn. There are so many bodies of knowledge, whether medicine, literature, history, etc. I have a few friends that could probably build their own home, one of whom already has. Trust me, I know a lot of things they do not, and they've picked my brain many times. In fact, I'll take it further: I think some of my more learned friends would find these construction-adept persons to be in fact less intelligent. My point is that there are indeed many bodies of knowledge. Heck, it's been said that no one can know everything about just A/V. The science in this field alone is just too vast. I doubt the guy who can easily and immediately explain the physics of LCD transmission can also explain the mathematics behind finite impulse response theory.
And, putting a picture up on a wall, symmetrically, with all lines/walls under consideration is not always that easy.
BTW,
stupidist is normally spelled stupidest, and that's assuming we accept it as a word to begin with, or the descriptivist lexicon in general. There are those who know language better than you or I who would say it is not a word.