Did a bit of research dive and I feel bad for the kid. Everything I can find about him looks like the typical child prodigy story of a genuinely bright kid combined with way-too-involved helicopter parents. Just check out this description on his website:

When Elliott isn't immersed in his love of academics, you can find him playing board games with his family, spending time with friends playing games such as Minecraft, Oculus, and Dungeons and Dragons, reading, traveling, and listening to some of his favorite musical artists which includes Steely Dan, The Beatles, and Billy Joel.

There's no way this 13 year olds love for Steely Dan isn't due to some heavy influence from his dad. His parents are in the media a lot, and have raised over $36,500 for his "PHD tuition" (despite being pretty well off) so they clearly have an interest in making their son famous as the next IRL young Sheldon.

Also, there's a surprisingly decent take on the reddit thread about him

Child prodigies often have hard lives. I wish him the best of luck with all his endeavors.

A lot of you are surprised by this but it's true. Many child prodigies don't stay that way. Many plateau and eventually are caught up by their peers as really all they have done is master a skill/field of study quickly. It's impressive when they're very young but when they grow up they really haven't developed further than that and are left behind in many ways socially and sometimes economically. They tend to be under extreme pressure to succeed and do great things while also having very little in common with both their older educated peers and younger same-aged kids. This leaves them to be very awkward and socially outcasted even as adults. Even worse, it's actually not that common for a child prodigy to be genuinely creative in their chosen field of accelerated learning. They don't really grow and discover after reaching their peak and so they don't meet those expectations of "greatness" as they slowly get older and become just some person who is good at a particular skill/subject like plenty of other educated people who went the regular route. Don't get me wrong, I'm not saying it's all doom and gloom for them as there are plenty of practical advantages to be that far ahead when you're young. I just wanted to ramble a bit to shed light that these kids DO have it hard in a lot of ways.