Your essay is a fine view out of strings in quantum gravity (QG). Black Holes (BHs) are really the basic element of QG. I claim also the elementary particles are BHs. I have also some theories in QG and in your essay I saw that "Gravity Research Foundation Essay Competition" exists. The next one is in May 2024. (I hope that it is not limited to universities?)
It is also fine that you read my essay precisely enough. You gave a remark about my proposal about anti-relativists. Although relativity is proven, I am afraid that the full rejection of anti-relativists will mean also a full rejection of other theories which seem nonsensical, but they are not proven to be wrong. For instance, Sabine Hossenfelder claims that free will does not exist. One proof on the contrary is panpsychism. but she claims that it is nonsensical. (But a rejection of free will is really nonsensical. And I have a theory of consciousness also.) The other reason is that anti-relativists need channels that they can communicate. (I know one of them) But of course, it is not appropriate to open them a place in arXiv. But science needs a little of chaos, I think, but not too much of it. And science needs more freedom.
I also gave you a high score.