senator from new york to say in the 1970s that something momentous had happened and that the republican party have become a party of ideas. well ideas have gone on vacation in the republican party partly because they can't be expressed in twitter and new media that experienced by tuperation and venting and all the rest. this is why in a way, technologies have made the world safe. it's made the republican party captive to donald trump. >> you argue in the book, that social media which we've spent a lot of time on this particular program discussing today is actually good for the literary world. how come? >> well, it can give a great velocity to ideas. what it's done is made speech cheap, in the sense, in order to disseminate ideas in previous ages to large numbers of people, you had to own a printing press. or a broadcasting entity.