Is writing making us dumber?

Plato tells the story about how the technology of writing can be feared:

Thoth has invented writing and proudly offers it as a gift to the king of Egypt, declaring it "an elixir of memory and wisdom". But the king is horrified, and tells him: "This invention will induce forgetfulness in the souls of those who have learned it, because they will not need to exercise their memories, being able to rely on what is written…rather than, from within, their own unaided powers to call things to mind. So it's not a remedy for memory, but for reminding, that you have discovered. And as for wisdom, you are equipping your pupils with only a semblance of it, not with truth."

Now we talk about the internet making us dumb. I'm not trying to make a point, but it's a cute quote, eh?

H/T Gordo.