If by pseudo-scientific you mean difficult/impossible to falsify then I'd agree with you. If you mean gobbledy gook then I would disagree.
There are some number of theorists that are working with multiple universe theories defined by 'choices' in the quantum world. Its hard to prove that such things exist (or don't exist) but one notion has that detangling a photon from its entangled counterpart has you "actualizing" in one of two possible universes. The GP thread posits macroscopic effects of that, which is both impossible to prove and an interesting conjecture.
The GP posits interactions between the several possible universes, in the sense that I am from universe A and am litterally talking to someone from universe B. While it is conceivable that this type of cross universe interaction is possible, it is not at all possible in our current understanding of physics, and if it where possible, it would have to be possible in a very subtle way or else we would have already noticed it (in the same sense that relativity breaks Newtons laws in a very subtle way).
Assuming that such interactions our possible, we have no reason to believe that the macroscopic effects would be to transfer intact memories between universes, or for the universes to be similar enough for us not to notice this effect explicitly, but different enough for events to occur differently for different people.
I'm not an adherent to the many worlds interpretation, and I claim no specific expertise in this space. That said, I read your comment as implying that a MWI would be, by definition, acyclic? To be honest I was thinking that might not be the case on the theory that you could arrive at the same universe by many paths. Some part of me wants infinity constrained slightly :-)
Only the memory is transfered from one universe to another, not the actual event.
And because people don't usually falsely remember things in a way that is inconsistent with how things turned out only subtle changes would be transfered.
This is just an idea I'm playing with for fun, I'm not trying to start new physics.
There are some number of theorists that are working with multiple universe theories defined by 'choices' in the quantum world. Its hard to prove that such things exist (or don't exist) but one notion has that detangling a photon from its entangled counterpart has you "actualizing" in one of two possible universes. The GP thread posits macroscopic effects of that, which is both impossible to prove and an interesting conjecture.