Not necessarily drunk, more likely promoting his services and attempting to generate more interest in the technology so he can make money off of it. There -technically- isn't anything wrong with that, but it doesn't sound logical to the average person, so it probably isn't the best.

I wouldn't say the USD is very strong, but it is not weak enough to be replaced by a digital currency yet. More things have to happen for the value and position of the USD to be challenged.