As a big Hopkins fan, the answer is..... of course its possible. Anyone who thinks otherwise are being naive.
I dislike that most here want to give black and white answers. Is it possible he is taking steroids? Yes definitely. Is it a sure thing? Absolutely not. Hopkins is a dirty fighter so I don't think he would have any moral qualms about taking roids.
BHop is just a lot smarter than his opponents. Boxers in general aren't the smartest people in the world, so when you get a fighter with intelligence like BHop, Floyd, Ward, they dominate and make it look easy. They're really just outsmarting the other fighter.
Yeah, I saw Calzaghe make a fool out of Hopkins. Taylor beat Hopkins, Jones beat Hopkins, Dawson and when Kovalev was Hopkins' mandatory, Hopkins refused to fight him..........................