B But how does something start moving?

[Line_112]

In my opinion, the curvature of space is geometry, not force. Geometry determines the path along which a body will move, regardless of its speed. It is no coincidence that the theory of relativity speaks of the geometry of space. That is, if we proceed from the general theory of relativity, then a body caught in the curvature of space will simply change its trajectory of motion, regardless of how fast it moves. And if it is initially motionless, then it will remain so. In reality, bodies begin to move vertically downwards, even if we do not push them. Their trajectory is calculated based on the fact that this is a force directed vertically downwards. The curvature of space itself cannot push a body, let alone vertically downwards. Therefore, it seems to me that GTR is devoid of logical meaning and contradicts basic concepts.

 

[Nugatory]

In my opinion, the curvature of space is geometry, not force. Geometry determines the path along which a body will move, regardless of its speed. It is no coincidence that the theory of relativity speaks of the geometry of space. That is, if we proceed from the general theory of relativity, then a body caught in the curvature of space will simply change its trajectory of motion, regardless of how fast it moves. And if it is initially motionless, then it will remain so. In reality, bodies begin to move vertically downwards, even if we do not push them. Their trajectory is calculated based on the fact that this is a force directed vertically downwards. The curvature of space itself cannot push a body, let alone vertically downwards. Therefore, it seems to me that GTR is devoid of logical meaning and contradicts basic concepts.

In general relativity it is not space but spacetime that is curved. The distinction is crucial because is nothing is motionless in spacetime; we are always moving forward in time at the rate of one second per second.

An excellent illustration of how an object (in this case, an apple) that is motionless in space will start moving vertically downwards as a result of spacetime curvature is(credit to our member @A.T.)

As this thread is based on a misconception about the theory, it is closed.

 

[Dale]

it seems to me that GTR is devoid of logical meaning and contradicts basic concepts

Just a word of advice. Any time you think something like this of an established scientific discipline, you can immediately know that you are missing something.

In this case you were missing the time part of spacetime. But the point is that scientists are not idiots. We can be wrong, but the ways that we are wrong are much more subtle than this type of criticism.