This “theory” intrigues me. We are all familiar with Einstein’s idea of gravity acting like a bowling ball on a trampoline.
If gravity isn’t just a warpage of spacetime, but more like a fluid that goes down the drain (a massive object), Questions are:
Are verified observables (from gravitational laws formulated by Einstein…or even Newton) still observed with Falling Space?
What happens to the infallen space? Does mass/matter destroy space?
Where does “Fresh Space” spawn?
Is this theory equivalent to “Expanding” Matter/Mass?
I didn’t read the article. I suspect there are many ways one could describe gravity that mathematically equivalent. Perhaps the author has found one. But if gravity is “in-falling” space, then free-falling things right next to each other would presumably fall at the same velocity. But this isn’t the case, things next to each other, accelerate at the same rate.
There are some legitimate analogies for gravity which involve space “falling in” or being “sucked in”, which is presumably where this guy got the idea. Like the bowling-ball-on-the-rubber-sheet, it’s only an analogy, however, and neither of them is actually a particularly useful analogy.
Now I don’t see your signature…but, Troilus and Cressida, III,3 Ulysses:
Time hath, my lord, a wallet at his back,
Wherein he puts alms for oblivion,
…
For time is like a fashionable host
That slightly shakes his parting guest by the hand,
And with his arms outstretch’d, as he would fly,
Grasps in the comer: welcome ever smiles,
And farewell goes out sighing. O, let not
virtue seek
Remuneration for the thing it was;
For beauty, wit,
High birth, vigour of bone, desert in service,
Love, friendship, charity, are subjects all
To envious and calumniating time.
Well, that one is easily handled if you think of the infalling space as imparting acceleration rather than imparting velocity. If you think of it like a boat in a river, then water sets the speed and not the acceleration, so you’d be right about the weakness of the theory. But if it imparts acceleration, like a space ship using a solar sail to catch a laser beam for propulsion, then the infalling space idea doesn’t have the weakness you describe.
Not that I’m defending the theory on any other grounds…