We're all smarter than that.
But every one of us have made some thoughtless comment at some point in our adult lives. Open mouth, disengage brain. It doesn't make us not smart; it makes us human. And so is Obama. He was elected President, not presented for Godhood. Besides, he has to give the comedians some gaffes to work with or else it's going to be a really boring 4 years.
At least he SOUNDS intelligent. Bush may or may not be intelligent; I've never been able to tell. I do believe Bush is a well-intentioned man in many ways but good intentions don't get you much more n' a cup o' joe and a handshake.
So let's not set up the gaffe-o-meter yet.