At times daily volatility can cause one to lose sight of the big picture -- focusing on trees is okay as long as one doesn't forget about the whole forest. This universal approach can be applied today because we've just seen a massive decline in the prices of gold silver and mining stocks. In this case I'd like to provide you with my thoughts on something that might influence the precious metals sector (not every part thereof to the same extent) -- the head-and-shoulders formation on the general stock market.Let's begin with the long-term S&P 500 SPDR ETF (SPY) ...