The decline of the dollar is a choice that we are making by spending with wild abandon with no heed to the consequences (and indeed, somehow managing to convince quite a lot of us that we have some sort of moral imperative to bankrupt ourselves because not spending like drunken sailors is somehow morally wrong... to be honest I have a hard time following this argument, it's long since become unmoored from even Keynesian economic theory which at least had some basis in reality and is now just some vaguely moral imperative to spend spend spend). If we, you know, stop that, there isn't really a credible competitor on the horizon that could dethrone the dollar for quite a while. We're not talking about competition because the other currencies are really all that strong, we're talking about the end of the dollar as a reserve currency because we are behaving like idiots.