Time and gravitational field

Background.

Our investigations of what exists might seduce us to have little to say about an objective reality, in which nothing exists.

Methods.

The usual rules of tensor algebra have been used.

Results.

Time is equivalent to gravitational field. The four basic field of nature are geometrized. The structure of the fourth basic field of nature  is identified.

Conclusion.

Theoretically, the beginning of our world out of an empty negative appears to be possible.