Historically, the dollar index level drives many trends in the United States' gross domestic product (GDP). After reporting a better-than-expected 2.8% growth for the past quarter, GDP is now accredited to the strength of consumer discretionary stocks and behaviors. It's never good to be too concentrated in one area as an investor and a country.A market rotation has begun, with bonds as one area of interest. Stanley Druckenmiller has made a rotation of his own by selling out of NVIDIA Co. NASDAQ: NVDA and b ...