Dmytro Synelnychenko/iStock via Getty ImagesIntroduction On June 24, I wrote an article titled "Stock Picking Was 'Never' More Attractive: 3 Terrific Dividend Stocks To Buy."  I believe it is one of my most important articles, as we could be on the verge of a major shift that could potentially have a major impact on future returns.     The S&P 500's recent gains have been heavily concentrated in a few stocks, raising diversification concerns. There is valid skepticism about the sustainability of these d ...