You never derive spacetime in your article? Also, your article made me think about how little we know about gravity. What is gravity after all? I think there would be something to gain if you wrote about it. There is a series of things you consider that I don't like. First, you consider that the world is mathematical abstraction. How could we even create mathematical abstraction without mass? It makes no sense. We would simply be not able to perceive certain concepts, as it happen with objects with over 3 dimensions, that doesn't make them mathematical abstraction. Then, you disconsider the existence of energy, motion, time and dynamics. Things that have technological implications even. I understand that you believe in a world where the observers make up the existing things, but this is never put in a clarifying light. Why you believe this that is. You simply say the observer is fundamental.
Oh, and thanks for introducing me a site where I can upload articles. I was looking for one.