Partying on a Tuesday With Elon Musk and His 3-Year-Old

The future looked bright despite the rain on Tuesday evening at the Museum of Modern Art, where guests — including Elon Musk and Seth Meyers — gathered for a screening of a new PBS documentary series, “A Brief History of the Future.”

Mr. Musk, flanked by security, came with a preschooler in tow, his 3-year-old son, X Æ A-12, who is better known simply as X. (Same as Mr. Musk’s social media platform.)

X’s mother, the musician Grimes, is featured in the documentary series, which follows innovators who are trying to tackle some the world’s most pressing problems, like climate change and pollution. The documentary, as the title might suggest, centers on futurism. Its adherents approach these obstacles and challenges with a distinct sense of optimism.

(Mr. Musk is also a friend of Kathryn Murdoch, an executive producer for the show. Ms. Murdoch is married to James Murdoch, who is on the board of Tesla.)

While waiting for the screening to begin in the museum’s Celeste Bartos theater, guests discussed the F-word of the evening. Would you live until the end of time if science made it possible?