As so often, the Sage of Omaha put it best: “Nothing sedates rationality like large doses of effortless money.” These days, it is hard to disagree. Warren Buffett’s warning now looks less like a mere aphorism and more like a sharp summary of the latest research in behavioral economics. Our stone-age brains just don’t seem to be able to cope with digital-age credit products…

Continued at Forbes.com.