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It is woolly thinking that starts wars. Mutation of DNA is random. The laws governing the chemistry and physics are not.
The latest research has thrown up a new science called Epigenetics. This is where the environment an organism finds itself in switches off and switches on existing genes in your germ cells ie sperm and eggs.. It is all to do with the methylation of genes making them unreadable.
A simple example of starvation of whole populations due to crop failures caused the children and grandchildren to be smaller and less healthy. Meticulous records in scandinavian countries were the first historical human examples of this. It is even more insidious than this as even extreme stress in times of plenty can cause changes.
Have you ever wondered why we have so much depression in Australia a rich country, when it is almost unheard of amongst the teeming millions in third world countries such as Indonesia. Stress hormones will induce these changes so will pollutants.
Bert
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