[laughter] we don't know whether they will pass the maryanne wolf test for deep reading in a year or two, but we are going to see. and then if you could show this last one, i think a democratization that you are talking about is so profound. most of them are in countries where literacy is extremely high demand i mentioned the digital public library of america. it is really for the world. we live in a global society and the idea of a nationalist approach makes no sense at all. >> i think that is one the most of the most compelling fights i have ever seen have kids using tablets for education. there are no adult, nobody reads or writes. when you look at the children, mary and i don't know exactly what the kid on the right is doing. but if you look at them, they all have tablets and the kid on the far right is using the other kids tablet. talk about collaborative learning. we will see experiment that they learn how to read and they can learn. >> also, it has been one of the great experiences in my whole life, and i think nicholas for it, to bring a body of knowledge about reading the 10