ED and EA Are Totally Diiferent Concepts

ED and EA are totally different.  People usually think there is not much advantage by doing EA and there is advantage for ED.  Look at the EA (Yale, Stanford, MIT), you can see the rate is much lower than ED.  Lots of lagacies, athletes recruitment happend during ED/EA stage.  Another way to look at EA/ED acceptance is to look at how many percent of applicants are accepted vs. total accepted.  You will be surpised that there are 30-45% happend during ED/EA round.