What if all the scientific research into Survival, by Ian Stevenson and others (no one in science calls it reincarnation but it means the same thing) great researchers, and the estimate therefore, assuming there is "past life survival" of some part of the psyche/consciousness, recycles? How does that impact the alien life form count (numbers of consciousnesses able to through an unknown mechanism, return to re inhabit human life forms.? Amplification of thought is required here, not mere Expansion of thought. How would this if true make the possibility that life arises quickly and intelligent life at that? Might need another parameter.