Dear Vesselin,
You make a compelling case as to how equivalent theories contribute to hiding the nature of the foundational properties of the physical world. I found enlightening the idea that one may have equally correct theories but only one of them is closer to the heart of things and can be used as a foundation for future research. It's an idea that feels true. You have a very enjoyable and clear writing style which benefits the presentation very much. I am very enthusiastic about your essay. One thing I found a bit confusing is that I always though that relativity implies that there is no interaction but only geometry, however you seem to say something a bit different (page 8, the last paragraph "Had he lived longer, Minkowski himself might have arrived at this radical possibility"). But maybe I'm just reading it wrong.
Anyway, I loved your idea and your writing style so I am rating this essay accordingly. Should you have the necessary time, do read my essay and let me know what you think.
Warm regards,
Alma