Well alrighty then. I’ll just leave this to say that your follow up post highlights (to me anyways) that you haven’t looked into this much at all.
Go look at the MIT admissions blogs for the activities MIT is looking for, Do a search on admissions requirements for different majors. Read through some of the other posts on this forum. Sometimes the answers you think you are looking for point out that you are asking the wrong questions. I would suggest that maybe this is the case here.