Will Meta publicly launch a standalone prediction market product ('Arena') by December 31, 2026?

Resolves YES if Meta Platforms Inc. officially announces and makes publicly available a standalone prediction market application, internally referred to as 'Arena,' by December 31, 2026, as confirmed by an official announcement on about.meta.com or a breaking news report from The New York Times, TechCrunch, or Decrypt. The product must be generally accessible to a significant user base (e.g., via app store availability in major markets). Resolves NO if no such public launch occurs by this date.