1. We've gone through these transformations in the way information has been used: we
started off with the lecture when there was one copy of the book in the world and the
lecturer was reading it, the students were learning it. We got the revolution from
Gutenberg that now students all could read the book. And more recently we've had the
revolution of the Internet where the students now can do two things: one, they can access
all this information from around the world, all the books and all this other kind of
information. But more importantly they can access each other, they can access fellow
students and other people throughout the world. When we put that together, that's a
revolution that I think comes the closest to being a scalable solution to Bloom's
challenge. So thank you and I'll stop lecturing and make the rest of this interactive.