Why are EC's so vital?

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<p>The usual controversial claim is that there are too many Asian applicants and students (compared to the US population of 5%), so some schools try to keep the numbers down. Due to the opacity of admissions processes at the most selective schools, this cannot be proven or disproven from an outsider’s point of view, although many people firmly believe one way or the other and can detour a thread for hundreds of posts on the subject.</p>