Many Chinese believe that China should be less deferential to the U.S. because they think the U.S. is in decline. But this view is mistaken and China is unlikely to equal American economic, military or soft power for decades to come. Nonetheless, overconfidence has led to more assertive Chinese behavior in the last two years that alienated the Obama administration -- and this is the backdrop for this week's Washington summit. Since both countries have more to gain from cooperation than conflict, we must hope that Hu's state visit goes well.