For more than a year, the Observer writer has been probing a darkness at the heart of Silicon Valley. Last week, at a TED talk that became a global viral sensation, she told the tech billionaires they had broken democracy. What happened next?
100 years ago, the biggest danger in the South Wales coal mines was gas. Silent and deadly and invisible. It's why they sent the canaries down first to check the air. And in this massive, global, online experiment that we are all living through, we in Britain are the canary. We are what happens to a western democracy when a hundred years of electoral laws are disrupted by technology.