He talks slowly and deliberately and says a lot of words, but he's never actually saying anything. One has to be pretty dimwitted (this is directed at his fans) to think a person like him is saying anything meaningful when they speak.
There's an old song called "She ain't pretty, she just looks that way". For people like him it's more like "He ain't articulate, he just sounds that way".
Yup. Obama and most politicians are very good at saying nothing while sounding like they are saying something profound or important.
I think that is a pretty solid observation.