the primary visual cortex is about 60 milliseconds so that means that v1 is operating 3 meters in the past and if we go all the way through the ventral visual hierarchy then we're talking about about a hundred and seventy millisecond latency in a human it's about nine meters so there's a very deep sense in which if you think you saw Serena Williams's tennis serve you couldn't have because your brain you know this year line latency of your brain was way in the past so one suggestion that that's been made is if you're returning that