So the internet is both a cause and an effect of our malaise, of our alienation, of the hot, dizzying nature of 21st century digital life. That's why I called my book 'Digital Vertigo'. Vertigo is of course all about being dizzy, of being disoriented and confused. That spinning feeling we will have every time we switch on our iPad or our iPhone, is the dominant nature of 21st century life: digital vertigo.