Another chart graphed individual happiness in relation to personal wealth, and as so often that week, and in life generally, it was another damn bell curve. This one showed that poverty made for unhappiness, duh, then people got quickly happier once adequacy was reached; then, at a high middle class income, the very income that scientists usually demanded for themselves— having studied their own graphs maybe, the guy next to me muttered darkly, as if to imply they were rigging either their study or the system of compensation, or both— you got the highest happiness; then, as wealth rose, happiness decreased— not to the level of the poorest people, but far below the happiness of the middle peak.