![The Economist: Babbage show](https://d3dthqtvwic6y7.cloudfront.net/podcast-covers/000/034/980/small/the-economist-babbage.jpg)
Summary: A second quantum revolution is happening at the atomic level. What will it mean for the future of computers? Also: a new battery based on aluminium provides up to ten times the power. And why yellow taxis are much less likely to get into accidents. Kenn Cukier hosts.