>I don't understand the persistent effort some bystanders are making to discredit this work that has met the approval of mathematical professionals.
I don't try to discredit this stuff, and probably couldn't come up with similar proof myself since I'm not that interested in mathematics in general, but I am personally getting kinda tired of all these "child discovers x" stories where x turns out to either be something this is already well known or it turns out that they've just restated something that was well known in a somewhat trivial way. I'm not saying that's what happened in this case, but it is what happens in most of these sorts of stories that get published anytime it's a slow news day.
I don't try to discredit this stuff, and probably couldn't come up with similar proof myself since I'm not that interested in mathematics in general, but I am personally getting kinda tired of all these "child discovers x" stories where x turns out to either be something this is already well known or it turns out that they've just restated something that was well known in a somewhat trivial way. I'm not saying that's what happened in this case, but it is what happens in most of these sorts of stories that get published anytime it's a slow news day.