It's important to note that essentially nothing else changes regarding the laws of physics itself, nor alternate multiverse theories. Different 'potential universes/ time dimensions' would have their own physical laws in the same way that different 'actual universes/time dimensions' would. Each 'potential universes/time dimension' could vary very little from another, or could vary vastly from each other.
I am probably using incorrect terminology here and there, I'm not a physicist, but as I understand it all objects in the Universe contain potential energy because all objects in the Universe are being acted upon by one force or another at all times.
What I'm referring to in the billiard ball example is, that in the Space-Time dimension, the fact that the billiard ball is on the table at all, and any interactions that I may have with the billiard ball, are already determined. The instant the “Big Bang” occurred and our universe's time dimension came into existence, all of Space-Time was determined. The “where/when” of everything within the Universe was determined instantaneously. So the billiard ball never exists in a state of “Maybe I'll be interacted with” instead, it always exists in a state of “I will be interacted with, in this manner, at this time”.
My views on determinism vs. indeterminism are, that although Space-Time is set (determined), it is set by the choices that you made/make/will make. Ergo, you cannot change your future, but you wouldn't anyway, because your future was set by your choices, and you are you, so you would never have made different choices. An alternate you in an alternate universe may have made alternate choices, but you here in this universe made the choices that you made, and will make the choices that you will make. The moment of your conception and the moment of your death still/already exist. The flow of time is an illusion. Of course things get much more complicated when you realize that you didn't choose your parents, when they copulated, or...
For me the Space-Time dimension is analogous to a DVD. When the DVD is played, you make an appearance on screen at some point, but you are already/still on the DVD whether you are on screen at the time or not, or whether the DVD is being played or not.
What the paradox is saying is, that if every possible time dimension exists, and it is possible for a time dimension to exist that cannot exist in a multiverse of time dimensions, then such a time dimension must also exist. Ergo, a paradox, both a multiverse of time dimensions, and a time dimension that cannot exist in a multiverse of time dimensions, cannot exist at the same time.
What I am saying is “Yes they can, and here's how...”. (Apparently physicists hold symposiums and seminars to discuss this paradox and cannot figure out how to resolve it. But anyway...I digress.)
If we return to my analogy of Space-Time being like a DVD, what I am saying is that 'Imaginary Time' is like a massive DVD player, containing every possible DVD. However; none of the DVDs are actually playing, and if someone did come along, select a DVD and start playing it, all of the other DVDs and the DVD player itself, would cease to exist. Hence the existence of a multiverse of time dimensions, that includes a time dimension that cannot support the existence of a multiverse of time dimensions. From that point on, if the time dimension contains an inflationary multiverse, a quantum branching multiverse...That would all play out too. The laws of physics within our Universe are not being altered in any way in this scenario. I'm just proposing that given that all time is present all of the time, the entirety of our time dimension can be contained within a singularity of time, and that singularity of time can be contained within 'Imaginary Time', within a singularity. No “Big Bang”, just the potential for a “Big Bang” to happen, if someone comes along, selects our DVD, and presses the play button.