[Edit: I'm not eloquent enough to make a convincing case at 2:20am, but I don't think that extra sentence was merely a curious non-sequitur, even if it could be cut without modifying the point of that paragraph. I can list out tons of points/counterpoints in my head ("what about redheaded people with thin left eyebrows? why not mention them? would that be a non-sequitur? what about the historical and socioeconomic implications behind this demographic group and its relationship to technological access? ..."), but I don't have enough expertise to give this topic a proper treatment. So I'll leave this thread by recommending the following two books:
http://www.amazon.com/Unlocking-Clubhouse-Computing-Jane-Mar...
http://www.amazon.com/Stuck-Shallow-End-Education-Computing/...
]