Maybe you could disprove it by observing a electron/positron pair being created and then annihilating each other, forming a closed loop that couldn't be part of the single path traced by a single particle.

IANP, but Ive always thought you should be able to observe reverse causality in a positron if true. That’s the primary effect of going backwards in time - a reverse in entropy.

The other side of the theory is the positron hidden in the proton. I assume a particle collider should be able to falsify this.

But it turns out antimatter isn’t supposed to actually move backwards in time but follows the same causality as everything else. It’s just that they represent their matter pairs configuration mathematically by reversing the time orientation. This isn’t super obvious but it’s very much different than going backwards in time literally. Sad!

This is yet another case where a layman-written wiki article about physics is highly confusing to other laypeople, because it only tells you half the story. Particularly because it seems to be based on a chapter of Feynman's popular science book. But the book actually goes on and points out how Feynman immediately dismissed Wheeler's hypothesis, because the universe contains a lot more electrons than positrons. You'd have to explain that imbalance first if you want to entertain this line of thought.

We have something like a spinor network in 4D space, where some portions are opposite others in parameters.

Is this a diagram of particles interacting or a single thread weaving through time? Pick your metaphor.

I guess it's the age old question of what's a true, distinct particle/thing and what's just the disturbance of a vaster medium (wave)?

Pretty sure that electrons are a fundamental particle coming from the electron field. They are pointlike objects with no other components.

[dead]

Black hole, or singularity? Black hole describes the event horizon and singularity describes the point like object that would exist in a non-rotating black hole.