Babbage: Signal and noise

Social media platforms face one of the most testing weeks in their history as they try to filter the real election news from the fake—host Kenneth Cukier asks whether they are up to the task. In the data economy, does privacy equal power? And, how to harness the sound of the deep sea to power underwater devices.Please subscribe to The Economist for full access to print, digital and audio editions: www.economist.com/podcastoffer Hosted on Acast. See acast.com/privacy for more information.