The nature of inertia.

[rupol2000]

Now in physics there are complex models based on Newtonianism and Einsteinism. Allegedly exists
some kind of magical movement that is supported by itself.

However, in the natural sciences, complex models are rejected if there are simpler explanations. And inertia can be easily explained by the fact that the body is drawn into the etheric stream, just as it happens in water, when the body picks up the same stream that was created at the moment of acceleration.