Multiple independent reports confirm that Elon Musk did, in fact, appear as a featured guest and speak at the All-In Summit 2022 in Miami, the event referenced in the April 23, 2022 episode.

• A CleanTechnica write-up explicitly states that “Tesla CEO Elon Musk recently spoke… at the All-In Summit 2022” and describes his full summit presentation about Tesla’s multiple business lines, identifying him as “a guest at the All-In Summit 2022 held by All-In Podcast hosts Jason Calacanis, Chamath Palihapitiya, David Friedberg, and David Sacks.” (cleantechnica.com)
• The Wikipedia entry on the All-In podcast lists Elon Musk as one of the “notable speakers” at the 2022 All-In Summit in Miami Beach, Florida. (en.wikipedia.org)
• A Washington Post report about a later Twitter-related subpoena notes that the document specifically asked for information about the All-In Summit 2022 and states that “Musk spoke at the event via videoconference.” (washingtonpost.com)
• Entrepreneur likewise reports that “Musk spoke at ‘The All In Summit 2022’… on video,” confirming his participation in the program as a speaker. (entrepreneur.com)
• Coverage from TechNode and the Observer recounts comments Musk made at the All-In Summit 2022 in Miami about WeChat being “really an excellent app” and “a good model” for Twitter, further corroborating that he spoke at the summit. (technode.com)

Although some sources specify that his appearance was via videoconference rather than in-person, he was a billed summit guest and delivered remarks during the event. That satisfies the prediction that he would attend (as a featured participant) and speak at the 2022 All-In Summit.