Meta chief Mark Zuckerberg has directed an internal team to build a standalone prediction markets app called Arena, the New York Times reported. The app would initially use a points system, with real money betting not ruled out for later. Meta chief Mark Zuckerberg has directed an internal team to build a standalone prediction markets app called Arena, the New York Times reported. The app would initially use a points system, with real money betting not ruled out for later. by Soban News (international And National News)