It's obviously untrue that technology can't fundamentally alter human communication in a few years. For example, the advent of film, then radio, and finally television caused a convergence of culture at the national and even global level. Characters like Mickey Mouse and the cast of Star Trek are instantly recognized internationally, even to those who never have seen any of the works they star in. There likely isn't anyone here who doesn't remember some catchy commercial jingle of their youth or catchphrase from media that entered the national lexicon. And yes, it also affected reasoning: Walter Cronkite, a long ago TV journalist, was labelled "the most trusted man in America" for the integrity of his reporting. The internet caused a second wave of transformation since it was many-to-many communication instead of unidirectional broadcasting that allowed the coalescence of subcultures, examples being various fandoms and, infamously, 4chan.