I still the info bubble thing to be bullshit. People hung out in places they liked in meatspace and lived in information bubbles before the internet. Its called a group of friends. If somone was well read they would have a nuanced view and most people depended on having a few noteworthy people to ask about complicated things. Open to everything on the internet means rooting around in a pile of shit at this point and the more you cut the shit away the easier it will be to find the rare gem.