Erik Brynjolfsson, MIT professor and best-selling author who heralded the 'Second Machine Age', says automation is changing work faster than even he thought it would. Plus, why China's tech giant Baidu is opening its driverless car platform to outside developers. And how Facebook is placing messaging and virtual reality centre-stage at its annual F8 gathering. Presented by Rory Cellan-Jones, with BBC tech reporter Zoe Kleinman, and special guest Tom Standage, deputy editor of The Economist. (Image: Robot sitting behind a desk in a meeting room, Credit: Getty Images).