Say what? The headline is taken from the brand name of a Corning Glass product that the author here said is one of the great success stories in modern materials. "Pretty much everyone with a mobile phone, tablet or other touchscreen device benefits from this amazingly robust, scratch-proof glass (or one of its competitors). Provided you don’t drop your phone onto a stone floor, it feels close to being an immortal material," he writes. What does this specifically have to do with concrete? You'll have to read to the end to find out.