If you are in the market for some excitement and exoticism in your boring old 401(k), then boy was this a good week of headlines for you. First there was Basic Capital building a product that allows leverage within 401(k)s, and then there was Empower beginning to...

In her phenomenal book In This Economy?: How Money & Markets Really Work, Kyla Scanlon writes about what she calls the "vibes economy." So much of what happens at the macroeconomic level seems to be based on sentiment—or, vibes—and it's crazy how much power those vibes...