Every urbanite’s worst nightmare came true for one New Yorker this week: Jennifer Rosoff, leaning against the railing on the balcony of her Upper East Side apartment, suddenly fell 17 stories to her death after the railing gave way. This is obviously horrifying and tragic. Rosoff was a media executive with stints at The New Yorker and Cosmopolitan on her resume. It’s outrageous that the owners of her building were so remiss in their balcony inspection duties. But if you skimmed the beginning of the Associated Press’s account of Rosoff’s accidental death, you wouldn’t get much information about Rosoff’s promising...