> The brain becomes relegated to the role of a cache instead of working as the whole of an individual's knowledge.
I have a pile of physics textbooks sitting nearby but that doesn't make me a qualified physicist. Availability of knowledge isn't worth a thing if it's never been integrated into your mind.
It's great to know what knowledge exists and where.
It's less great to think that you know something just because you could swear you have read it on the Internet once, which I think is what GP meant. It's not unusual to see people post bullshit because they think they understand something they've read on Wikipedia or a random blog or forum but actually they know shit about it.
I have a pile of physics textbooks sitting nearby but that doesn't make me a qualified physicist. Availability of knowledge isn't worth a thing if it's never been integrated into your mind.