Why are there different races?
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Why are there different races?

Human genetic diversity does not originate from "different races" but from the influence of geographical environment and migration. Environmental stresses in different regions, such as UV intensity and disease prevalence, promote genetic mutation and natural selection. The accumulation of these small differences creates the phenotypic diversity we see rather than distinct "races." Therefore, the dualistic concept of "race" should be abandoned, and the common origin and evolution of human beings should be valued.

Why do aliens come to earth?
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Why do aliens come to earth?

It is no accident that alien civilizations visit the earth. Resource depletion and environmental degradation may be one of the driving forces. But the deeper reason may be related to the exchange of knowledge in the universe and the exploration of the progress of civilization. They may be looking for a new living space, or they may be exploring the mysteries of the universe, and it is not a simple invasion. We should keep an open mind, analyze rationally, avoid panic, and actively face this unknown challenge.

Why was there no writing in prehistoric times?
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Why was there no writing in prehistoric times?

The lack of writing in prehistoric times is not due to lack of human intelligence, but an inevitable result of the stage of social development. Early humans mainly lived by hunting and gathering, with limited information needs and no driving force for large organizations and complex transactions. With the agricultural revolution and the rise of settled life, the social structure became increasingly complex, and the need to record and transmit information gradually emerged, and writing came into being. This process reflects the close connection between human civilization and social development.

Why is it called the Mandela Effect?
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Why is it called the Mandela Effect?

The Mandela Effect is not a simple illusion, but when the brain is faced with incomplete information, it actively fills in the gaps and constructs a seemingly real memory. This process reflects our cognitive positivity and creativity, but it also lurks the risk of misjudgment. An in-depth exploration of the working mechanism of the brain can help us identify the authenticity of information more clearly and avoid being misled by false memories. Only careful thinking and critical thinking can resist the impact of the Mandela Effect.

Which religion believes that the bed must be thrown away after death?
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Which religion believes that the bed must be thrown away after death?

Undoubtedly, some religious traditions do have norms regarding funerary rituals that include provisions for the handling of relics. The bed, as the last resting place for the deceased, is often closely related to religious beliefs and cultural customs. Understanding the deeper meaning behind these norms helps us respect different cultures and appreciate their unique values. However, simply treating "the bed must be thrown away" as a universal teaching of a certain religion may be oversimplified. Only by deeply exploring the specific rituals and interpretations of different religions can we more fully understand the cultural connotations behind them.

Does one wish to fly like a bird?
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Does one wish to fly like a bird?

Since ancient times, humans have longed for the freedom of birds to fly. This desire is not only reflected in literature and art, but also hidden in human exploration of science and technology. From myths and legends to modern aviation, the study of bird flight mechanisms has driven humans to continue to innovate and pursue more convenient and efficient ways of movement. Perhaps we will not be able to completely replicate the lightness of birds after all, but this pursuit has ignited the fire of human progress.