Kevin Drum is afflicted with Social Security rationalism. At its worst this disease manifests with trichotillomania and associated emesis.

Sufferers will wander aimlessly noting to anyone they see that the Social Security deficit is not that large and does not accelerate as a fraction of the economy. They may even begin to wail that uncertainties surrounding productivity and population forecasts are actually larger than the projected deficit.

Libertarian sufferers have been found huddled in corners, repeating endlessly: “sustained immigration lowers the average age of the population, sustained immigration lowers the average age of the population. . . ” It is not known what this phrase means.

Sadly, there is at this time, no cure.