> resets the game to a slightly earlier time and replays the "real" moves to reach the current point. That's exactly what properly engineered network games do.

> resets the game to a slightly earlier time and replays the "real" moves to reach the current point. That's exactly what properly engineered network games do. However we're talking about video streaming here, in which you don't have access to any game state. It's not possible to do without the developer going in and adding specific feature support for your streaming service.