Unless someone can point me to significant new export industries for the US, I remain extremely skeptical of all claims of a bright future for the US. The trade deficit is a monster growing at uncontrolled speed in the background of any debate on the topic of US competitiveness.
Another troubling point for me is the US tax policy. It is currently heavily weighted towards wealth concentration (you can see this trend in a multitude of statistics on the topic). For a consumer-driven economy this is a disaster. Progressive taxation and the income levelling it fosters is at the core of our economic success over the last 50 years. The reversal of course on this philosophy in the last 4 years, at the very time US workers are under extreme levels of stress, will likely result in a period of very tough times for America.