Jaron Lanier is a pioneer of the modern internet and known as the "father" of Virtual Reality. But at the TED conference in Vancouver, Jane Wakefield hears why he thinks things have gone so badly wrong that there should be a mass deletion of social media, and the tech titans should start charging for their services.Jane also hears from Gizmodo's privacy expert Kashmir Hill about her experiment with turning her home into an internet-connected "smart-home" and the enormous amounts of data her devices produced, even as she slept. Plus Olga Yurkova, a Ukrainian journalist who set up the website StopFake to debunk fake news and propaganda, and Mikhail Zygar, a prominent Russian journalist who argues that the impact of fake news and Russian trolls is vastly over-stated. (Picture: Jaron Lanier speaking at TED2018; Credit: Bret Hartman/TED)