That's still too bold of a statement. You have to look at the wider horizon. China is growing fast because they have a lot of room to grow and a lot of cheap labor. They will reach a point one day when they exhaust the cheap ways to propel their economy. Housing bubble is also a threat, have you seen videos of Chinese ghost cities?
Taking into account population, US is still in the top ten ranking of GDP per capita, somewhere behind Qatar and Switzerland. China is on ~100th place in the company of Algeria and Jamaica. US does have a problem with overspending (two wars) but it is not in a free fall, US GDP slowly but growing.
In my previous post, I was looking at the fundamentals. Sure, China has it's own problems but their fundamentals are more sound then the ones in the U.S.
Remember, China has +3 trillion in foreign reserve while the U.S have a $14 Trillion debt (but if you add the governement obligations: medicair, medicaid, social security, freddie n fannie, the U.S debt is hovering over
$60 Trillion). All the U.S have to repay it's debt is a printing press lol.
When it comes to the US GDP, remember, it is 70% consumption based on borrowed money. That GDP can evaporate tomorrow morning (I'm a exagerating a little but you get my point). Withing a decade China became the world's #1 : Automobile Market, Art Market, Investment in Renewable Energy Market, Real Estate Market (eventhough that bubble will eventually burst) using the 'saving,investing, producing' system. Meanwhile, the US used the 'borrow,spend,consume' system and what happened in the last decade? Exactly, lol
And when you look at the GDP per capita, you have to look at the income gap wich of course, in the US. is at an ALL TIME HIGH.
Again, sorry for the off-topic.