Fifty years after the discovery of the structure of DNA, a new use has been found for this celebrated molecule ... fuel for molecular computation systems. Around a year ago, Prof. Ehud Shapiro of the Weizmann Institute made international headlines for devising a programmable molecular computing machine composed of enzymes and DNA molecules. Now his team has made the device uniquely frugal by making the single DNA molecule that provides the computer with the input data *also* providing all the necessary fuel. To give a better idea of the scale of this discovery, a single spoonful of "computer soup" can contain 15,000 trillion such computers, together performing 330 trillion operations per second with 99.9% accuracy per step. These computers need very little energy and together release less than 25 millionths of a watt as heat. You're reading the future. Link