serve a big part of what you're doing is you're looking at the lined up and you're predicting where the ball is going to be and that's where you're putting your racket so you know and this this idea has been sort of you know it can be shown there's a little bit of nuance here but if this is called the flash lag you lose inch so if you look at this dot right here and then watch this sort of clock hand going around you see how there's like a little flashing straight line now is that line behind in front of or lined up with the clock hand