What about the conservation of energy? 'Side what gets reincarnated, according to what I have heard, is predilictions and habits. Not habits as in always getting up on the same side of the bed, but habitual perceptions, as in all people are intrinsically evil/good. Supposed some folks can project themselves through the bardo and see out the other side to where they'll show up. I dunno, I really dunno. Watching babies makes me think that we are born with some predilictions... and some things we learn. But, our perceptions affect our learning, so if we are a grumpy sort that affects how we perceive life (and I read a study where they were trying to either prove or disprove the idea that people get grumpy as they get older, they found that grumpy kids became grumpy adults who then grew old and became grumpy old farts). Mary had a rather idyllic childhood, but was a suspicious sort and still is a suspicious sort. I had a hellish childhood and am a rather pleasant sort. Comparatively speaking.