Let me water down the concept so you can understand it:
Surgeons are some of the highest paid profession in Australia.
Is it likely that surgeons can become cleaners? Absolutely yes.
Is it likely that cleaners can become surgeons? Absolutely not.
Why? Answer that question.
The answer is because of the physical limitation of the brain, which is one of the most important trait that society selects for and it isis determin purely by genetics.
