Are 80% of Harvard students first-born children?

This video is from “Justice“, one of the most popular classes in Harvard’s history.

23 minutes into the video, professor Michael Sandel asks students who are first-born to raise their hand — and an eye-popping number do.

Admittedly, this is a less-than-scientific survey but apparently Sandel’s done this many many many times over the years and consistently come up with a similar result.

Of course, there are possible confounds (upper class families who send their kids to Harvard have fewer children on average, etc.) but still quite interesting to ponder.

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