[thaumasiotes]

> not including the few savants who graduate high school before turning 18

I graduated high school before turning 18.

I never skipped a grade at any point.

My final year of high school consisted of taking four classes, of which three were taken only because they were graduation requirements: "English 12", "History 12", and "Acting 3". It may shock and surprise you to hear that the content of "English 12" and "History 12" was not appreciably different from any other "english" or history classes at the school. In particular, they were not different from "English 8" and "History 8", except in that they counted toward the UC "four years of high-school-level english and history classes" requirement and the "* 8" classes technically didn't.

It doesn't take a savant to graduate before turning 18. All it takes is realizing that staying in high school is stupid.