 that if you take experience London taxi drivers and you image their brain they have a very interesting feature there's an area in the brain right back here deep in here called the hippocampus yeah one on each side and that area has been implicated in two things in studies one is memory and the other is spatial spatial recognition finding your way okay how do I get there so London taxi drivers have a significantly bigger hippocampus than normal controlled subjects so that that's that's one of the few things we know it's strange right they're trained they're trained so before before training they they were just equal like the assumption is the assumption is that yeah so I'm missing follow-up study would be to take these guys before they become you know that's a driver study their brain they look the train things so shall I start now okay one last question yes you have said that there are 100 millions neurons more than 100 million and more than 1000 types of cells and that we are different different our brains are different and more complex and as many functions but integration integrated function of the brain would be considered as a cognition or intelligence and we know that there is a simple way to measure this complex function IQ yeah for example I am pathologist we do work in neopathology and is any way or are there any investigations research to make integrated methods for estimation the architecture of organization of brain good that I would say in morphological way to estimate to evaluate the functional ability of the brain using such data number of neurons number of synapses number of types as an adequate method for morphology to evaluate IQ in the specific the answers yes that there are methods that people have used and people have been published revealing some morphological differences in IQ they're very very complicated though so for example on average women's brains are about 15 percent smaller than male brains but everybody knows women are smarter than men so it's not a simple little thing so I'll stop