This kind of reminds me of the "logic" used for UFO sightings.
That's because it's the same illogic that forms the foundation of most fringe claims, regardless of genre: erode faith in the prevailing story by one standard, then prop up your claim -- using a separate softer standard -- as the default that must hold in its place. The standard by which the conventional narrative is dismissed is usually no more substantial than handwaving FUD.
Jabba tells us all he needs is a "reasonable alternative" to the scientific explanation. He's not going to prove that alternative. He can't, and he knows he can't. But in fringe argumentation doesn't have be testable or falsifiable, because it gets a different standard of proof than the one by which it proposes to reject the mainstream. It just needs to be an alternative. Fringe thought is less about testable claims than it is about embracing anything that's styled as counter to the mainstream. Fringe claimants take pride in the belief that they are the enlightened few. Note Jabba's periodic insistence that he exercises a mode of thought that's not limited by the "analytical" restrictions of his critics.
The immortal soul is Jabba's "reasonable alternative" to a materialist mind, just as space aliens are the "reasonable alternative" for UFOs when swamp gas and weather balloons fall short. Space aliens are "reasonable" because 150 years of modern science fiction has normalized us to the notion of the celestial bodies being worlds possibly inhabited by noble humanoid aliens who want to be our friends (or eat us). Now that's a far cry from what science itself actually believes about the possibility of extraterrestrial life. But that gap doesn't worry the claimants. Similarly Jabba's soul is "reasonable alternative" only because thousands of years of human superstition has normalized us to the idea on an emotional level. And similarly, science muses about the nature of consciousness, and the gap doesn't bother the fringe claimants. The gap bothers skeptics though. The Martians of Heinlein and Bradbury are a romantic notion, but not close enough to science. Similarly while physicists may wax philosophic in their popular books, the science of how the brain actually works doesn't go there, or need to.
But the fatal flaw is not the gap between romanticized notions and their real-world counterparts. It's the way the claimant evades the burden of proof by posing his claim as the default that "must" hold (or at least be seriously considered) if some other claim fails, without any further proof. It's every bit the false dilemma it smells like. The UFO "can't" be an Earth vehicle, so it "must" be not from Earth. The physical mind "can't" produce Jabba's unique consciousness, or float about the room looking at Zener pictures, or see the light at the end of the tunnel -- therefore there "must" be a soul.
Getting someone to accept a proposition on anything other than direct evidence for the proposition should raise intellectual hackles every time it's attempted. We humans are suckers for false dilemmas unless we're careful.
The claim is usually something along the lines of, "but this one sighting couldn't be identified so it must have been an alien craft."
"Science doesn't currently explain NDEs or OBEs well, so there must be a soul."
I've been in and amongst flying machines since my early teens. Despite vast experience with a wide variety of aircraft, I still occasionally see one in a circumstance that catches me off guard. That's the substance of the UFO phenomenon. Have you ever driven on a road approaching a runway at right angles and seen a landing airplane seemingly hover motionless relative to ground features? Have you ever seen an airplane fly in fog at night, where the fog bank and airplane are far enough away that you can't recognize that there is fog?
Our expectations for how things behave are based on canonical expressions of those phenomena, allowing for only slight variation. And this leads us to tell ourselves confidently, "If it were an airplane I would know it. I know what airplanes look like." Well, the largest source of UFO sightings in my state is the California seagull. Or rather, flocks of them. Like many gulls, the bird in question is dark along the top of the wings and back, but with a brilliant breast and underwing surface. Flocking birds, as you're well aware, tend to wheel almost perfectly in unsion as they fly. Now as you look off into the distance and see a flock of these birds flying against a mountain backdrop, they will seem to alternately appear and disappear. And if they're too far away for you to see them as individual birds, you'll think they're one single object.
Now the California seagull is our state bird; there are a lot of them and you see them all the time in parking lots, and on the shores of the lake. If you tell one of our residents that what he saw was a flock of seagulls, he'll happily tell you that he's perfectly capable of recognizing seagulls when he sees them, and what he saw was definitely not a flock of seagulls. Except it very much was -- just not in canonical form. We vastly overestimate our ability to identify things reliably. Even people familiar with airplanes and birds can only recognize them a certain percentage of the time. The remainder are the UFOs.
Similarly we'd like to think that if NDEs and OBEs are the products of an organic brain, we'd recognize them as such. Jabba assumes that all the products of a working organic brain will be unremarkable. It's on that basis he concludes that an out-of-body experience must be supernatural, because it doesn't fit the canonical mold of a natural organic conscious experience. But we challenge that assumption of canon. Brains starved of oxygen or under physiological and chemical stress are akin to airplanes flying in distant fog banks at night -- a rare observation, but not necessarily unremarkable. There is no reason to presume the thoughts that arise under those uncommon neurological conditions should resemble the ordinary consciousness.
No. It means that it couldn't be positively concluded what it was. Nothing more. For all of the sightings that could be fully investigated and a conclusion reached, 100% of them resulted in non-alien explanations. So what are the chances that those sightings that could not be concluded are actually something mundane?
Which is exactly why we explain marginal experiences by refining existing models to include them, not by advancing something wholly unproven and radically different. We know we can identify airplanes and birds only with a certain margin. But fringe claimants drive a wedge of speculation into that margin.
Lack of a firm conclusion is a lack of a firm conclusion.
And the reason we can arrive at firm conclusions in some cases is because it is possible to falsify claims of something being a bird or an airplane. We know the general characteristics of those categories and the specific characteristics of individual examples of them. We can test those known characteristics against the observations and determine whether they fit or don't. When we can't draw a firm conclusion, it's because we don't have enough information to test.
The problem Jabba is having proving his soul is the same problem UFO claimants have proving space aliens. They adopt exactly the same approach, saying that because we don't know of any actual space aliens, we can only speculate about what characteristics they might have. Therefore it's not possible to falsify a UFO claim as not being space aliens, and skeptics don't have a leg to stand on if they doubt the identification. Sadly, scientifically speaking, if you can't falsify it, you can't claim it
is space aliens based on evidence.
And this is why it's absolutely essential that Jabba come up with a falsifiable definition for a soul. Only then can we test the data against it. He will not, however, because it forces him to run his soul theory head-to-head with the scientific model on the same level ground with the same advantages and handicaps. And he knows he can't do it. The only way he can "prove immortality mathematically" is by all these deceitful rhetorical and pseudo-statistical shenanigans.