Neuralink, a company founded by Elon Musk, has received approval from the U.S. Food and Drug Administration (FDA) to conduct limited human testing of its brain-computer interface technology. The company has been granted a breakthrough device designation, which allows for expedited review of medical devices that provide for more effective treatment or diagnosis of life-threatening or irreversibly debilitating diseases or conditions. This means that Neuralink can proceed with testing its brain chips on humans under certain conditions and with appropriate oversight. **

The brain is larger in humans than in horses. The average human brain weighs about 1.4 kilograms, while the average horse brain weighs about 0.6 kilograms. This size difference is due to the fact that humans have a more complex and developed brain structure, which is necessary for our higher cognitive abilities and advanced social behaviors. **

Yes, prehistoric humans are considered to be early members of the Homo genus, which includes modern humans (Homo sapiens). While they may have had different physical characteristics and lived in different time periods, they are still classified as part of the same evolutionary lineage as modern humans. Prehistoric humans were capable of using tools, creating art, and engaging in complex social behaviors, indicating their human-like cognitive abilities. **

Yes, prehistoric humans are considered to be humans. The term "prehistoric humans" refers to early human ancestors who lived before recorded history, and they are classified as members of the Homo genus, such as Homo habilis, Homo erectus, and Homo neanderthalensis. These early humans exhibited many of the physical and cognitive characteristics that define modern humans, such as the ability to use tools, engage in complex social behaviors, and adapt to various environments. While they may have had some anatomical and behavioral differences from modern humans, they are still recognized as part of the human evolutionary lineage. **

It's subjective to say whether animals are better friends to humans than humans. Animals can provide unconditional love, companionship, and emotional support, which can be incredibly valuable to humans. However, humans are capable of complex communication, understanding, and empathy, which can also make them great friends. Ultimately, the quality of a friendship depends on the individual relationships and the unique qualities of the individuals involved. **

If humans' brain capacity was increased, they would likely have enhanced cognitive abilities such as improved memory, faster learning capabilities, and increased problem-solving skills. They may also have the potential for greater creativity, innovation, and critical thinking. With a larger brain capacity, humans could potentially unlock new levels of intelligence and understanding, leading to advancements in various fields such as science, technology, and art. **

If humans were able to use 50-100% of their brain, it could potentially lead to significant advancements in cognitive abilities, problem-solving skills, and memory retention. This could result in a higher capacity for learning and understanding complex concepts, as well as improved creativity and innovation. However, it's important to note that the idea of only using 10% of our brains is a myth, and we already use all parts of our brain for different functions. Therefore, the concept of unlocking unused potential in our brains may not be scientifically accurate. **

Humans are more susceptible to brain damage upon impact because of the structure and size of our brains. Our brains are larger and more complex, with a higher density of neurons and blood vessels, making them more vulnerable to injury. Additionally, the way our brains are situated within our skulls leaves them more exposed to damage from sudden movements or impacts. In contrast, animals have smaller, less complex brains that are often better protected by their skull structure and other physical adaptations, making them less prone to brain damage from impact. **