He’s skinny like a distance runner, has terrible form (poor start, stands up too soon, wobbles down the track, runs a bit hunched over), but is just naturally FAST.
The biggest thing here is that he’s running faster than both Usain Bolt and Tyson Gay were a the same age and most sprinters don’t peak till 27 to 30 years old. If he gets the right trainer/coach, stays clean and doesn’t burn out...watch out! 9.80 should be a breeze with some minor corrections. 9.70 and lower with a few more years of growing and weight training.
He also has pretty long hair. I am not sure if that slows him down. Didn’t Bolt or one of the others get nailed for doping? I hope the kid gets a good coach.
Its the center of gravity. Caucasians have a longer torso, so their center of gravity is higher. Therefore, they need to stand up straighter to limit gravitational impedence.
It isn’t bad form for caucasians.