it starts with ambiguitien egger, the -- guttenberg, the printing machine. so what was the printing machine given to us? come on. you read books? newspapers? so it made information accessible to lot of the people. before guttenberg the books, basically, the religious books were like, you know, rewritten by the physical people, and they were really, really expensive because, you know, there was no access to them. once you get this printing machine, you could reach a lot of people in some time with relatively cheap product, the book or newspaper. that brings us to the second step in the media revolution line number one which is radio. what has radio enabled us to do very unlike printing machine? hear people's voices which is important, but even more important? sorry, louder. oh. oh, yes, music. but when it comes to the spreading of the information, immediate. yes, that's the difference. because it takes some times to print, and it takes some times to distribute what you've printed. with radio you can listen as it happens. there is a traffic accident in brookly