Predicting human evolution over such a vast timespan is inherently speculative, but here are some potential scenarios based on current understanding:
Physical Changes:

• Reduced Muscle Mass: With increased reliance on technology, physical labor might decrease, potentially leading to smaller muscles.
• Larger Brains: Continued cognitive development could result in larger brains, though this is debated.
• Altered Senses: Adaptation to artificial light and sound could lead to changes in vision and hearing.
• Increased Diversity: Human migration and interbreeding could lead to a wider range of physical traits.

Technological Influences:

• Enhanced Longevity: Advances in medicine and biotechnology could significantly extend lifespan, potentially altering the aging process.
• Genetic Engineering: Deliberate genetic modification could lead to targeted changes in appearance and abilities.
• Cyborg Integration: Blending with technology could result in part-human, part-machine beings.

Environmental Factors:

• Climate Change: Adapting to a changing climate could lead to alterations in skin pigmentation, body shape, and respiratory systems.
• Resource Scarcity: Competition for resources could favor traits associated with efficiency and resilience.

It’s important to remember that these are just possibilities, and the actual course of human evolution will be shaped by a complex interplay of biological, technological, and environmental factors.

Many people hold the view that evolution in modern humans has come to a halt. But while modern medicine and technologies have changed the environment in which evolution operates, many scientists are in agreement that the phenomenon is still occurring.

This evolution may be less about survival and more about reproductive success in our current environment. Changes in gene frequencies because of factors like cultural preferences, geographic migration and even random events continue to shape the human genome.

But what might humans look like in 50,000 years time? Such a question is clearly speculative in nature. Nevertheless, experts that Newsweek spoke to gave their predictions for how evolution might affect the appearance of our species in the future.

“Evolution is part deterministic—there are rules for how systems evolve—and part random—mutations and environmental changes are primarily unpredictable,” Thomas Mailund, an associate professor of bioinformatics at Aarhus University in Denmark, told Newsweek.

Something we can say with certainty is that 50,000 years is more than enough time for several evolutionary changes to occur, albeit on a relatively minor scale, according to Mailund.

“Truly dramatic changes require a longer time, of course. We are not going to grow wings or gills in less than millions of years, and 50,000 years ago, we were anatomically modern humans

For example, we might get taller, because of sexual selection. And we might also become more attractive on average, since sexual selection plays more of a role in modern society than natural selection.

“Attractiveness is relative, so maybe we’d look like movie stars but if everyone looked that way, it wouldn’t be exceptional,” he said.

As time passes and technology evolves, it is also possible that humans will begin to direct our own evolution in a targeted fashion through gene editing tools such as CRISPR—potentially aided by artificial intelligence.

“Applying genetic techniques to humans that alter phenotypes is highly controversial and ethically fraught. Indeed, 20th century eugenicists thought they could improve the human species by only allowing the ‘right’ people to breed,” Hodgson said.

This evolution may be less about survival and more about reproductive success in our current environment. Changes in gene frequencies because of factors like cultural preferences, geographic migration and even random events continue to shape the human genome.

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