Based on my study of Harvard undergraduates, the average number of romantic relationships over four years is less than one. The average number of sexual partners, if you’re curious, is 0.5 per student. (I have no idea what 0.5 sexual partners means, but it sounds like the scientific equivalent of second base.) In my survey, I found that among these brilliant Harvard students, 24 percent are unaware if they are currently involved in any romantic relationship.
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