Perhaps your explanation is better.
You say that: “Gravity is a curvature of space-time.”
Now I’m wondering what is the difference between my view that the gravity “originates” in the space-time and your view?
More than twenty years ago I watched a series of programs on satellite TV, the title was “Mechanical Universe” it included information on quantum physics and in very simple language.
I highly recommend it for anyone that is interested in physics.
It is also on the web:
http://www.learner.org/resources/series42.html