Review by Rachel Ehrenberg
The most common edit to a Wikipedia article changes only a single line of text. The same is true for Linux, the open-source computer operating system: A typical contribution changes just one line of code. Such “microcontributions” are one way to bring more expertise to any enterprise, argues Nielsen, a physicist. And by using such approaches to make all of science open and collaborative — through online sharing of data, methods and problems — the rate of discovery will ramp up too.