Spoken Like A True Harvard MBA Graduate
We'll probably never know whether a diagnosis of "pre-senile dementia" is correct, but years and years of severe alcohol abuse, which President Bush has admitted to, can result in brain damage that takes a couple of decade or more to show itself. However, it's a remarkable comparison of Bush's verbal skills in the early 1990s, compared to the mid-2000s :
Then again, it's not exactly a secret that Bush was, at the very least, an occasional cocaine user in the early 1990s. Just a little bit can give you that kind of gleam in your eye, and appealing confidence.