Why is there only ever one (sometimes two/three) decent players every generation? Most will end up dying after one or two poles... how come once the algorithm gets decent there are many more making through the game along with the best one?

(Also, I'd like "number of taps per game segment" be a weight... fall until the very last second then a couple of quick taps - none of this "spamming to keep level" stuff: where's the style? ;)