Again, we seem to agree on the dualisms involved here, even if we describe them differently. When I talk about Faustian/Promethean progress in the West, as set against nature's monstrous inhumanity, that's consistent with the linear vs cyclical views.

But again, when you talk about the dynamics of centripetal and centrifugal forces, I have to ask whether you're speaking technically or metaphorically. Are those forces supposed to be literally operative throughout culture? Or are you appealing to physics as a metaphor? What would be the analogues of those forces across society? What are the locus and gravitational vortex in cultural (nonphysical) terms? Are you talking about the extinction of our species via the ecological damage our linear progress is doing?

If so, I wonder whether the physics metaphors illiminate as much as they're liable to confuse. If the physics vocabulary isn't directly relevant to culture, we have to be clear on the metaphorical meaning of what you'd be saying. Metaphors are open to interpretation, and they can make for strong or for weak comparisons.