"[Effective altruism is] the application of cost-effectiveness to charity and other altruistic pursuits. Just as some engineering approaches can be thousands of times more effective at solving problems than others, some charities are thousands of time more effective than others, and some altruistic career paths are thousands of times more effective than others. And increased efficiency translates into many more lives saved, many more people given better outcomes and opportunities throughout the world. It is argued that when charity can be made more effective in this way, it is a moral duty to do so: inefficiency is akin to letting people die."