We have to...
As far as I'm concerned, the prison planet narrative provides the explanation that makes the most sense. But there's no 100% certainty, because there are other possibilities that can fit into the picture.
I want to start with the possibility that memory loss is a natural phenomenon.
This is the most disturbing possibility, because it fucks with the Ego and questions the nature of the ISBE. What if it's totally normal that you can't take your memories with you, depending on the body you are using?
Think about this: A newborn has a fresh brain. You can compare it to an AI that hasn't been trained yet. The neural connections aren't there, and you can't use what isn't there. It could be totally natural that the brain has to grow to a certain point, and memories from past lifes will come back over time.
But this possibility has severe implications: It means that the ability to use your ISBE faculties – like telepathy and remote viewing – depends on the body you are using. In other words: The ISBE is "dumbed down" as long as it's connected to a body.
But if this is true, there should be no need to zap the ISBE, as putting it into a dumbed down body would be enough to get rid of the memories. All you would have to do is to prevent memories from coming back, ie sabotage the brain while it's growing.
So, maybe the zapping is not used to erase memories, but has a different purpose? Maybe there is no zapping and Farsight is misinterpreting their remote viewing data? Maybe Farsight is fed false data through the ET connection they use when remote viewing? But this raises the question: Why tell us a prison planet narrative if it's not true? What's the purpose?
I mean, telling us that we are getting enslaved after death is like telling us that we can't do anything about it. Wtf are we supposed to do? Because from our point of view, people die alone, which means that whatever is happening after physical death, we will face it alone. We can't gather and fight it as a group.
And this feels to me like a demoralization psyop.
What are we supposed to do? Where are we supposed to go? How is the information that this is a prison beyond death of any help to us humans?
What are the good ETs – if they exist – waiting for?
So, let's go the other route: The ISBE faculties don't depend on the body. The good ETs are waiting for us to reactivate our psychic ISBE faculties. If that's the case, it would mean that the ETs need our psychic faculties. But then I have to ask: Why? To do what? I mean, we are still dying alone, aren't we?
So, let's assume it's about communication with the afterlife. Make people aware that the light is not your friend, so people can prevent being processed and therefore can gather after physical death.
If this is the plan, we have a problem: Communicating with the afterlife does not prove anything. Communication can be rigged. It could be a trick to persuade people to die, like these cults that persuaded their members that a comet will save them if they commit suicide.
So it always boils down to the same question: Where's the proof?