Don't you find any difference between 2000 and now? 泡沫是经济活动的正常现象,没有.com泡沫,能有今天的Internet infrastructure 吗? Google is a great company, they create great application, and have great technologies.
What US need to now is to get rid of debt, and we may have couple difficult time when doing that. As long as debt problem gone, the spring is coming.