According to what I read, there are tests for those kinds of ceilings. Just like Giga Society disdains the SB thinking too many kids are identified as PG and won't accept the results.

If Harvard and MIT have programs for really young kids, which I assume means more than 1. You have kids like the one at Hunter and Columbia and this other kid at Fairfield and Yale, you can cover 5+ kids per year. Since they seem to hit the news, whether it is Kit Armstrong, or this girl who graduated from Stoneybrook at 14, about ten years ago, or the posting about the MD/PhD student at U of Chicago, who is all of 12 years old. The parents didn't push for this. No MD program is going to let you in because the parents push.

Ren