I knew it was going to be in the last place I looked for it. So I looked there first!
Madness string 1096
More than half of adults in the US have a reading comprehension at or below the level of a child in grade six, and more than 20% are functionally illiterate. It's not that different in other countries either. Once you know that, both the Internet and the state of political affairs make a lot more sense.