The theory might be a bit out of the ordinary, in it's basic it is a non-symmetric string theory, with a few of it's practical consequences worked out in the article.
To summarize the contents of the article:
"In this article a particle is being presented that explains all known forces of nature. The particle has no dimensions, it is a dimensional basic particle. Hence it gets the following name: 'dimensional basic' (db) particle. The core of this discovery is that the separate fundamental forces of nature: - the strong interaction, the electromagnetic interaction, the weak interaction and the gravitational interaction - are calculatable with one formula out of one principle. The statistical math of the quantum theory is set aside in favor of a goniometric approach. Gravitation is the only force that matters and the strong force, the electromagnetic force and the weak force can be explained out of gravitation while gravity itself is only caused by the curvature of db's. The formula for the extent of curvature around a db is: sqrt(x^2+y^2+z^2) × Kr = 1. In the formula: x, y, z, are coordinates in spacetime [m], Kr = curvature [m^-1]."
The title of the article is 'Metric Science' and the file is 2,3 MB in size. The article can be downloaded from: https://metric.science or https://www.vixra.org/pdf/2106.0155v1.pdf
The article has not been peer-reviewed.