The fact is that this invention will produce for-getfulness in the souls of those who have learned it. They will not need to exercise their memories, being able to rely on what is written, calling things to mind no longer from within themselves by their own unaided powers, but under the stimu-lus of external marks that are alien to themselves.
Again, the theme of people fearing the potential consequences of disruptive media that has become absolutely essential to the flow of modern day life. This quote from Plato demonstrates that even the wisest among us sometimes can't see past their own nose. Yes, Plato correctly predicted that writing and literacy would lead to a decrease in memorization and a de-emphasis on the intellectual oral tradition. But if not for disruptive media, we would all be lounging in the Athenian agora like Plato, believing the sun revolved around the Earth.
Often times, the zenith of disruptive media brings with it exaggerated hysteria over the potential ill-effects of what it will do to our current forms of media. But these doomsday predictions never seem to come to pass. The television didn't kill the radio. Email didn't kill face-to-face human interaction, and neither did the telephone. Writing didn't kill knowledge. Many of these Luddites forget human agency, the ability of humans to balance media consumption and manage the emerging new forms of media with classic forms.
Rheingold begins this section called '(Using) the Internet Makes Us Stupid (or Not)' in order to promote restraint and emphasize the forgotten element in all of these negative predictions for disruptive media: choice.