Commentary
Myriad posters on X, formerly Twitter, late on Sept. 10 noted (36-year-old!) Novak Djokovic’s 24th Grand Slam championship. Extending his own men’s record—Margaret Court won as many when tennis was as Tiddlywinks to today’s game—was accomplished in front of signs for Moderna Inc., the maker of COVID-19 vaccines and a main advertiser for this year’s U.S. Open.