Hmm, sort of like UA?
Right. At present it's impossible to tell whether we're pinned to the earth by an upwards acceleration of the earth, bendy space-time, Graviton puller particles, or something else entirely. Any theory of gravitation is a hypothesis and nothing more.
As an aside, in the modern FE model Gravity does not exist as either Bendy Space-Time
or Graviton particles. The apparent attraction of the cosmos above our heads is thought to be electro-magnetic in nature. We're pinned to the earth by an upwardly accelerating earth, and the
Cavendish Experiment doesn't work.
The mechanisms of bendy space and sub-atomic Graviton particles are not necessary to explain our universe.