This is a six year old. She plays the piano. better than you.
My only hesitation? There is no "feeling" there, and the pace is wrong. Now, before you harrangue me with "She's only six!" - yes, I understand. I am posting the video, aren't I? I already think she's pretty amazing. But as the son of a concert-pianist, I am aware there is more to piano than just the math. And, I watched some of her other videos, at other ages, up to 11 years old, and it's the same thing. No feeling, and no pacing.
I don't blame her. I blame whoever is teaching her. It's an outrage they wouldn't teach the child pacing and subtlety of the notes. Maybe that only comes with maturity. I'll ask my mom.
Still, she is pretty spectacular to watch.