I remember a day student at the boarding school I went to. He wasn't a genius. He didn't say much. He had to wake up in the wee hours of the morning to do farm chores. But dammit, he applied himself, did his work, and pulled down straight A's without making a whole lot of fuss about it.

100% of the kids aren't gifted. But something like 80% of them in the US could be performing above the current "average" level with the right encouragement.