I'm looking forward to loving guns once I joined the Collective. Wouldn't that also mean we'd all have the hots for Shiny? I think that would pose some serious Collective issues.
Erh..;anyhoo. The US has a major economy, but they are -to an extent- living on credit. The overwhelming use of the credit system within the US itself has created an imbalance, with people spending more money than they actually have/there actually is. Needless to say that can't go on forever.
Also, the funny thing is that it is in the interest of a lot of countries that the US doesn't get weaker economically speaking, for the already mentioned trade reasons. China (or japan, I forgot) is a major player in keeping the dollar at an artificial high, simple because a weaker dollar would mean a weakened trade with the US, something they can't afford. It goes the same for the W-European countries btw; but our economies obviously have different focus than a growing 3rd-world country.
It comes down to it that the US is economically speaking living on borrowed time, and that their budget deficit is growing while other 1st world countries are actually lessening it. The question is if the US' most important trade partners will let them hanging or not, and the answer is most likely: nope. Not very soon anyway. Because trade is always a two-way street and it would bite them almost as much in the ass as it would the other way around.
of course, regardless of all this the US has a massive economy...just saying that the rest of the "1st world" really isn't doing much worse, if at all.