Quantum immortality combined with some near death experiences fits perfectly into gnostic afterlife theory
There is a thought experiment called "quantum immortality" that say that if universe branches into paralel universes with deffrent outcomes then you are immortal because when you "die" your consciousnes will always go to a branche where you survive so you are immortal
(Note:this is a thought experiment and we dont know if its true)
In a lot of NDEs people describe seeing a god-like person that lets them choose if they want to go back to earth and the god-like person will sent them back if they want it
So what if the god like person is the demiurge and you will be just eternaly reincarnated unless you will choose otherwise like in the theory of qantum immortality?
This sounds very similar to what gnostics beleave and i think this is the best argument for gnosticism that i can think of