Elementary particles and fundamental interactions constitute the most elementary level of physics. Although theories commonly recognized in physics allow for predicting measurement results with high accuracy, these theories have no theoretical justification and the theories use many parameters whose values must be adjusted to the measurement results.
We know from experience that complex systems can be built from simple elements. There are no known reverse cases where a simple system can be built from complex elements. Since elementary particles and fundamental interactions, as the most elementary level of physics, are also the simplest level of physics, it can be expected that the explanation of why we have such and not another number of elementary particles and fundamental interactions may be simple. Since the answer to this question is not yet known, whether the answer is simple or very complicated is a matter of faith. Taking into account the efforts of physicists trying to answer such a question, physicists do not believe in a simple explanation and deal with more and more complicated theories.
If someone does not believe in the possibility of a simple explanation, then there is no point in them continuing to engage with the concepts presented on the website below. There are several possible starting points for the presented concept.
The physical conditions for the curvature of space are an attempt to answer the question of what properties must be assigned to space in order for it to be curved. The analyzes are limited to explaining how structures interacting with each other over long distances (1/r^2) with properties corresponding to the properties of elementary particles can be formed in space.
 

Physical conditions of space curvature

 
 

The geometric hypothesis of the universal interaction asks fundamental questions about matter and space. Whether an elementary particle as point object is geometric point, or is it extended object of immeasurable magnitude? For geometric point, related difficult problems to the differentiation of properties of elementary particles and infinite values of some parameters arise to overcome. In the geometric hypothesis, we analyze an elementary particle as an extended object of immeasurable magnitude (less than the Planck length).  
 Are the properties of the extended elementary particle properties of the substance filling the space by the elementary particle occupied, or is the space occupied by the elementary particle not filled with anything, and the properties of the elementary particle are properties of the space being the elementary particle. For substance filling the space of an elementary particle, it is difficult to determine the properties of this substance that would be consistent with the results of measurements. In the geometric hypothesis, we analyze an elementary particle as an empty space unfilled with anything. The empty space of an elementary particle is different from the empty space that surrounds an elementary particle. The difference between the space of an elementary particle and the surrounding space is explained in the geometric hypothesis by the deformation of spring rigid space.
 Analyses leading to the formulation of the geomentric hypothesis concern the three-dimensional springy rigid space, and more precisely the behavior of this space with a local disturbance (fluctuation) of rigidity. The analyses show that in the case of a local disturbance of rigidity in three-dimensional space, structures with properties identical to those known from measurements of the properties of elementary particles may be formed, and more precisely these structures interact identically with each other as elementrane particles, which is the basis for a geometric hypothesis identifying structures that may arise in three-dimensional space with elementary particles, and interactions between these structures with interactions Fundamental.

Geometric hypothesis 
 
It seems obvious that the reader of the article may ask many questions requiring additional explanations beyond the analyses presented in the article. Additional explanations in response to questions asked in Polish will be posted on the forum. 
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