From thermostats, to step counters, pressure gauges, and chips that guide the Roomba around your living room, there are now more electronic sensors in the world than there are people.\n\nSo what do all of these sensors mean for us and our relationship with the world and where exactly will it take us?\n\nChris Salter, artist & Professor of Immersive Arts at Zurich University of the Arts (ZHDK) and the author of \u2018Sensing Machines: How Sensors Shape Our Everyday Life\u2019 joins Jonathan to discuss.