This is meant to be a kind of nerdy and annoying, maybe even it's not politically correct, so don’t take it too seriously, ok? After all, I would hate to offend anybody, wouldn’t I? ;)
To drive a car you need to pass driving test and your car needs to be roadworthy. In other words in the cases of cars and driving there are certain requirements. However, there are none in the case of humans having children. Quite often it seems people who actually shouldn’t have children for various reasons have them quite a lot. Of course, these reasons may be environmental and social. However, from evolutionary standpoint there is a biological and genetic problem.
The point is that human species is not evolving anymore in biological terms – or so it seems. Humans have created artificial environment disconnecting themselves from the nature and social conditions which effectively ceased the process of natural selection in human population. People, who would certainly die due to, let’s say bad genes, are not dying anymore but rather live long enough to pass their bad genes to next generations. Therefore and as I said there is no natural selection: likely general pool of genes is getting worse. Due to different factors giving birth resemble Russian roulette.
Is there a solution? It appears it will be. The problem likely will be fixed due to genetic engineering and progress of science. Unless some cosmic cataclysm struck the Earth I would expect some time in the future a situation where parents will be able to choose which set of genes their child should have. Another option will likely be upgrading not through natural biological process but through technological means (effectively creating some sort of cyborgs).
Somebody could ironically notice that so far humans counter this and other related problems (like overpopulation) with social alienation in modern societies. More alienation, less breeding. Good.
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