Are human beings still evolving, and what is the path of evolution in the future?

There is no doubt that humanity is still evolving. Evolution is defined as a change in gene frequency. And the genetic frequency of human beings, as long as human beings continue to reproduce, then it will continue to change.

The reason I say upstairs people are unprofessional is because they limit their evolutionary dynamics to "natural selection." Indeed, most people's understanding of evolution now is natural selection, because this paragraph is the best popular science, and this "story" is the most vivid and interesting to tell. However, the dynamics of biological evolution are diverse, and random drift, migration, and inbreeding can all be evolutionary.

In fact, the effects of natural selection are difficult to observe. It is only in some extreme cases (such as the example of the birch inchworm in high school textbooks) that the selection pressure is very high, or when the effective population is very large. <>

Another important driver of evolution is random drift, which is the change in gene frequency caused by random effects in the process of inheritance. The general meaning of random drift, for example, is that a person is gifted or has some unique advantage in a certain aspect because of a mutation in a certain position of one of his chromosomes. However, since humans have two sets of chromosomes, which one is passed on to their offspring is completely random.

If his descendants don't get that chromosome, then when he dies, the new gene will be "drifted" away. It is also possible that although some of his descendants have acquired this chromosome, after several generations, the new gene is still unlucky to remain. Of course, if the gene is retained after several generations, and the new gene also acquires a relatively fixed gene frequency in the population, then the gene is said to be "fixed".

I think the progress of science and technology is also one of the evolution of human beings, as long as people are still creatures, they are still part of nature, so even if it is technological transformation, I think it is a part of human evolution, and it will create and use the unique ability that has evolved from human beings, and technology is just to amplify or improve this ability, and even more exotic abilities, such as regeneration, such as self-evolution, are not these more rapid and effective than those that evolve naturally? <>

The actual human population size is large, reaching the 9th power of 10, but it is not completely random to mate (although transportation is now very developed, the probability of a Chinese marrying a Chinese is still far greater than the probability of marrying an American). Therefore, when discussing evolutionary problems, the population size data used are based on an average calculated by the retrospective theory, that is, the "effective population size". The effective population size of humans is on the order of 10 to the 5th power, which is much smaller than its actual population size.

The effective population size of this magnitude is not large in nature, and the observed effects of natural selection are actually very small, while the drift effect occupies a very dominant position.

So, human beings are still evolving from moment to moment. Moreover, even if only the natural selection effect is discussed, it is still a ...... that existsLet's talk about it first, it's a bit time-consuming, as for the second question of the landlord, there are some other discussions, if anyone reads it, then fill in the hole. <>

Humanity cannot continue to evolve, and humanity has basically evolved to the end, unless there is a huge improvement in technology.

It can evolve, although the current social environment is relatively stable, and everyone can guarantee life expectancy very well, but there will still be some situations where an evolution is obtained as the environment changes.

Humanity cannot continue to evolve now. Because continuing to evolve will make the world very chaotic, and there is no condition to re-evolve.

Yes, because there are a lot of scientists now who are studying why humans appeared, and they want humans to evolve.