totally true - this is the experiment to see what we can learn to improve our flying by actively talking about moves in a way that normally would be frowned upon (normally it wouldn't be sporting to plan the moves based on other players moves) but in a 'school' situation the coach can say 'there is a weakness there, go exploit/defend it' or a player can say - you can see I've gone left twice after you shot me - perhaps that's a rudder jam, you can guess I'm going left again (or whatever).