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I teach theatre courses at a small university.
I always have a hard time convincing students about the "social good" of seeing tragedies (they vastly prefer comedies, bevause, wh wants to be sad?) Tragedy is a stand-in for actual experience: the tragic hero a virtual sacrifice. s/he suffers and perhaps dies so that we don't have to, but we the viewers vicariously "feel their pain" without suffering the dire consequences. And if this articvle is to believed, it's good practice for our brains.