The Power of a Short Cut

Marcus de soto has just written a book called thinking better, the art of the short cut in math and life. He says finding these short cuts is often hard work - but once you've found them we can all benefit from their power. The author compares it to building a tunnel underneath a mountain: the first dig requires a lot of work and energy and time. But once the tunnel is created, the rest of us can then polr through once we've learnt the trick.