From the BBC “Road use is expected to grow 25-30% by 2030, according to government figures. Which begs the question: what should the response be?” Clearly, not yet more roads, which has been tried. We might say fewer cars – and fewer people – given that England is Europe’s most crowded large country, along with Holland. However, the techno-fix from business secretary Vince Cable is self-steering cars. Apparently, this would cost a mere £5bn. That’s about the price of providing everyone on the planet with family planning.