At last we know why Orpheus — against all warnings and cautions — turns around.

Of course we’re referring to the much-loved Greek tragedy where Orpheus — a rock star of his time — loses his wife Eurydice on their wedding day. Overcome with grief, Orpheus travels to the underworld where his music so softens the heart of Hades that the god of the underworld allows Eurydice to return to Earth with Orpheus — as long as the musician does not look back as they walk. Alas, now we know why he does.