Michio Kaku: Mankind Has Stopped Evolving
Don't miss new Big Think videos! Subscribe by clicking here: http://goo.gl/CPTsV5 There are no more evolutionary pressures driving gross human evolution, but that doesn't mean we won't be...
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Kiran, if you read science fiction you might think that humans in the future will be slender, short, bald, with big heads and big eyes that sort of the stereotype that you get from the comic books. However, you have to realize that as far a gross evolutionary pressure is concerned; there is none anymore on the human race. For example, in the old days, when we lived in the forests, there was enormous selection and pressures placed on us to develop a large brain, to understand how to use tools, to run, to be able to navigate, to survive in the forests. Enormous pressures on us because if you were not fit to live in the forest, you died. And so your genes are not here today. But how much evolutionary pressure is being placed on us today? Well, first of all, there ...
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Kiran, if you read science fiction you might think that humans in the future will be slender, short, bald, with big heads and big eyes that sort of the stereotype that you get from the comic books. However, you have to realize that as far a gross evolutionary pressure is concerned; there is none anymore on the human race. For example, in the old days, when we lived in the forests, there was enormous selection and pressures placed on us to develop a large brain, to understand how to use tools, to run, to be able to navigate, to survive in the forests. Enormous pressures on us because if you were not fit to live in the forest, you died. And so your genes are not here today. But how much evolutionary pressure is being placed on us today? Well, first of all, there ...
