We are in the midst of a loneliness epidemic: More than half of Americans say they feel isolated, and we’re getting together less and less. In 2023, only about 4 percent of adults said they went to a party on a weekend or holiday.  According to Imogen Willetts, a party historian and author of the book Up All Night: A History of Going Out, this moment is an outlier.  “For most of human history, the experiences that we associate with nightlife — drinking, dancing, music, hedonism — those experiences were simply part of religion because religion was so all-encompassing,” she told Vox....