Sorry for a late reply. I just drive back from LA. I drove form PHX to LA and drove back in the same day.

Ancient people use sundial to gauge time. That way there is no concept of time zone, and world is flat. Two people born in far west China and far east China if born at same lunch time (12:00, measured by a local sundial) have the same providencial chart, even though they are actually born at two different instant time. Just like I drove to LA and drove back to PHX in a same day. I across time zone easily. Beside supersonic planes(used by Taiwan against China over Taiwan Straight, and surveillance against atomic facilities at Inland China) , most American truck drivers drive across time zone everyday(75 miles/hr) on continental highways.. This is unimaginable, when people transport via feet, horsing, 2k years ago.

Human's life is just like a tree's life. From embryo/seed to maturity/harvest is similar, and both follow expectation of interaction of genetics to environment. An orange will not change into an apple. What you see now on earth, from human to weed, all are best fits via natural selection. Creatures accommodate their life (to survive) through adpation(adjust+patience). People's life will adjust to new environment. Same trees grow differently at different environments. If transplanted, the tree, after transition period, if still alive, will grow slightly differently compared then they should be at their original land.
Ziwei and BaZi do not decide your life trek. They may suggest your mental status which leads your actions. You decide your life trek. For example, me and my wife were assessed, not so good, like poverty, life exclusion, weak, etc..... However, it is just the reverse... We receive the highest education degree achievable (DSc degree and MD degree) at your age. My wife is assessed by several Fortune Tellers to be already dead or dying (both BaZi and ZiWei). However, actually, my wife assess other people's death very accurately (99% die at the same day, another die at next day).. She decides to withdraw patients' life support and fill out death certificates. She was also surveyed/audited to be the best (#1) Physician in her hospital/clinic. My wife understands Yin-Yang-Wu-Shin well because she performs acupuncture on patients (American white people) as a medical alternatives. Fortune Telling can be entertaining. I study FengShui, ZiWei, BaZi as a hobby. My house now has two Canyon Cuts at front and back yards, and 4 Corner Cuts at 4 corners.... The toilet is right at the center point of house... I and my wife and kids sleep at the Death/Weak/Ghost Segments of the house...

I do not have enough wisdom and maturity to understand and believe them, well,may be not yet. I think I might when I have enough gray hairs.