> You might ask, if two choices are good, are three better? Yes, but only slightly. You get an exponential improvement going from 1 to 2; after that, testing more bins improves by constant factors.
The intuitive explanation for this is that the largest benefit comes from avoiding the most full bin. Two choices is always sufficient to do that.
The intuitive explanation for this is that the largest benefit comes from avoiding the most full bin. Two choices is always sufficient to do that.