Why does a body at rest move if Gravity is not a force?

[PeterDonis]

experts should try to explain the "acceleration in a gravitational field with no force applied" using the language of RG which, at the end of the day, is the language of math
intuitive analogies are misleading

Some final words in response to the above: yes, intuitive analogies are misleading, that's why you shouldn't use them, you should use math. But everything you have said in this thread is intuitive analogies, all of them wrong. You need to take your own advice and stop doing that and learn the actual math. The reference I gave in my previous post would be a good start.

When you do learn the math, you will see why the phrase "acceleration in a gravitational field with no force applied" is just another intuitive analogy in vague ordinary language and should not be used.