Nhs

The real reason we should be burning our own gas

Regular readers of this column will be familiar with my promoting an idea called a “Paceometer.” Rather than presenting speed in, say, miles per hour (distance/time), it presents speed the other way round, in minutes per ten miles (time/distance). Created by the cognitive scientists Eyal Peer and Eyal Gamliel, the Paceometer shows something which is mathematically trivial but completely nonintuitive. Quite simply, the faster you are going already, the less time you save by going 10mph faster still. Accelerate from 20 to 30mph and you save ten minutes on a ten-mile journey. Accelerate from 70 to 80mph and you save just over a minute. Upgrading to Concorde to fly across