MIT is distinctly not stats only. At Ivies, similar. Only Harvard reserves some spots for more purely academic achievement, but still in the holistic context. Few kids, across the country are genius level.
But OP didn’t ask about stats, started with “brilliant.”
And she did ask about MITand Stanford in other threads, so:
My answer is: very strong academically (in all ways,) energized and activated, accomplished, in relevant ways. That’s not awards; lots of admits won’t have them. Nor is it just “potential,” you need the record. And you still need to nail any Why Us.