Let me expand.
The physical human race has evolved continuosly over time, from small mamal through primate, into our awesome selves.
Young children are spontaneously remembering past lives, accurately.
That information doesn't belong there, and there should be no connection.
Therefor, we have a being inside of us who remembers its last experience in the previous human.
But that being is tryng hard not to give away its presence, thus the amnesia.
That means the whole process is manual, not natural. A sould must stalk (or pick) a pregnant woman as target, and dive in.
If the process is manual, it must have had a "start date". Otherwise, you must conclude that they've always done this even way back when we were rodants. Not fun. So, the date they dove in, is the invasion date. So perhaps we got creative after that... but still not needed to keep our heart beating and lungs going.
Hmmm, how can it be some people have out of body experiences and don't die? They may even have a bi-furcated experience, where after it's done, they remember both what the body was doing, and simultaneously what the soul wandered around doing. That proves we might not really need the invader.
I am not religious. Just agnostic
Am I soul jumper? Depends. There is no way to measure the effect of having a foreign soul in you ... is your personality coming 50% from the physical brain and 50% from soul? I don't know what "I" am. I don't know what "you" are. It's a complex recipe.
Wouldn't they want us to have amnesia so we, the physical race, don't rebel? Then poof, one day we all wake up at the same time and the real soul agenda replaces our individual life plans. Yikes.
Real world effects in my life...and maybe yours? How about that voice in your head that's constantly correcting your thoughts and plans. Perhaps it's a good voice for you, and perhaps not so good for others. We all have that. Is that the brain, or your installed soul, or long-lost-granny above? Are your brain thoughts constantly arguing with the souls thoughts?
No way to tell.
First experiment: Take a death row prisoner and knock the soul out, w/o harming the body. What will happen???
Guys, I've thought already about this for over 10 years. It would be great if we continued, but rather i think we are just remembered.
Maybe fondly.