I've still not had time to put my thoughts together but here for now are his slides, (Thanks to Henry Anson from Ark)
I haven't got his basketball video which is a pity as that really fooled me - what Gorilla I said! Carla claimed to have seen something but I was too busy counting people passing the basket ball in white T shirts, to notice a man in a Gorilla suit centre stage beating his chest! I kid you not, when I saw the re-run it's kinda embarrassing. He was making his point about tunnel and peripheral vision. Well made I felt.