In a week where markets hit new all-time highs, Dan gets to the question everyone asks with each new record. "You all know where I'm gonna come down on this." With this high-water mark, it's a good time to reflect on the principles of investing, from risk management, to value, to growth. Dan gets into the weeds on the literature of investor behavior - and the findings by DALBAR on individual investing performance, which while never changing year after year, are always shocking.