I don't subscribe to mysticism around some unimaginable quality of graduates from the top-20 universities, but I bet if you picked one person from each of the t

I don't subscribe to mysticism around some unimaginable quality of graduates from the top-20 universities, but I bet if you picked one person from each of the top 20 schools and one person from each of the schools ranked 181-200 (from any earnestly attempted ranking source), and worked with them for a month, by looking only at their work product, you could tell which group was which far, far more often than chance. I think the same is true for 1-20 vs 21-40, but it wouldn't be quite as clear-cut. Top universities being top is not some kind of mass hysteria.