Our 401(k) retirement system requires most workers to save for the future. But it’s difficult to reach this increasingly important goal, because our emotions – overconfidence, pleasure, fear of loss – get in the way. “We believe our own nonsense,” is how Daylian Cane, a professor in the Yale School of Management, explains financial behavior in a new public television program, “Thinking Money: The Psychology Behind our Best and Worst Financial Decisions.” The short video above is taken from the program. Further clouding our judgment are a vast array of consumer products, and the stress produced by how easy it is to purchase them with a credit card swipe and how hard it is to pay off the cards. “Thinking…