The human brain is very complex, and some consider it perhaps the most complicated structure in the universe. I can understand why. It is an amazing piece of equipment. Barely a couple of kgs and capable of so much. However, it is not perfect. There is this idea that prevails even amongst smart and educated people that because something evolved to be a particular way it must be the best possible design. That is flawed thinking. Evolution does not work that way. Evolution is trial and error. Just because we evolved to walk upright doesn't mean that walking upright is the best thing. Just because our brain evolved to be the way it is now, doesn't mean that it is the best possible design for a brain. Evolution is always correcting. Billions of species of lifeforms have become extinct. They evolved in a certain direction and that didn't work out and they went bust. This flawed idea of evolution is very prevalent in the health sphere and the conclusions they draw are sometimes ...
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