If they spent 100x longer de­cid­ing where to donate, then most effec­tive al­tru­ists would choose tar­gets with much higher ex­pected im­pact.

WikiLast edit: 23 Dec 2016 6:39 UTC by RyanCarey

This time could be spent on reading existing analyses, interviewing plausible donation targets, or performing new analysis. The question does not factor in the time cost of doing this research.

If it is helpful to spend a long time on analysis, then we may want to use donor lotteries.