Wow, some of you need to give the OP a break here. I think she included the info on the brother at MIT to give some context of the family environment. And she did say that her D was very gifted. I know that my D now definitely has a higher bar for herself because her brother is at a top school.
And wait until some of you kiddos are parents yourselves. You are going to compare whether it’s in your head, out loud or just confiding in others. But I agree you should try to be aware of it as much as possible.
I’ve noticed that some of the responders are brutal when giving advice but when they post and others give them advise, they become very sensitive and resent these efforts. Taking feedback positively is a learned skill that signals maturity I guess.