I can’t separate the media hype from the reality. What I’ve seen on YT of the kid only shows him explaining calculus. BFD. That’s not proving/disproving anything. He does have a different idea of how elements are created in stars, but he hasn’t developed the mathematical knowledge yet to work it out. If he has an idea that is radically different from Einstein’s, then he’ll have to work with a few other experts to determine an experiment that can prove it, like General Relativity predicted gravitational lensing and was proven true.
As far as breaking the speed of light, the key will be to better define gravity, since it is the only observable phenomena that appears to be instantaneous.
The National Institute of Standards and Technology demonstrated quantum entanglement in 2009. Einstein was spooked by it alright.
I call it another win for the holographic universe model