In 2000, as it happened, I was already familiar, in a glancing sort of way, with a longitudinal study that followed the lives of two hundred and sixty-eight men who graduated from Harvard in the years around 1940.

NEWYORKER: Land of the Seven Moles

And of course even when that high minded (and might I say single with no kids) individual committed their principles to action I would want to wait for the longitudinal study to come in before changing my consumption patterns.

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