That's the million dollar question

I've been asking myself that question, especially when the US economy is in the shape that is in now. To prosper in any economy, you need to know what's next to be ahead of the game.

Is renewable energy the next boom in the US economy? The R&D for renewable energy will be expensive and plus if
we do have the technology, how are we going to use it and how much cheaper is it going to be for the people.

Or is the economic boom going to be here in America? Will the new America is going to be in other developing countries, where they are just starting their industrial revolution.