Don't wait. Go to MIT for undergrad. Meet some like-minded people there. Start something while you're an undergrad.
Although this is not the OP's planned career path, he's planning on a startup after getting a Ph.D. and working a normal job for a while, which will also allow him to pay down the debt incurred in getting his undergraduate degree before the startup.
Another detail about MIT not yet mentioned: professors are formally allowed to work one day a week on things like their own startups. So "making a connection with a professor" includes the possibility of getting paid to work at such a startup which of course can be very educational about startups. And also get a different type of recommendation from "a MIT professor" that could also be useful in getting into a grad school.