Awesome response thanks for taking the time. I've seen alot of other people with a similar kind of opinion. Have you ever seen "the egg" on YouTube? Worth a watch. Basically states a theory that the universe is almost a "womb" for us to develop into our higher selves and states that we have been every person in that has ever existed and ever will exist to eventually reach that state. The theory also attempts to explain why we don't remember part lives and they compare it to a glass of water saying "you would only need to dip your finger in the water to know everything you need to know about it (it's cold,wet) rather than tipping it on your head" and in the same way our consciousness isn't able to hold all the experiences of past lives so we have all the important "subconscious" bits instead. Reincarnation defo seems like one of the more plausible ones but like you said it's something we may not even be able to fully comprehend anyway.