Why it is improbable there are highly developed aliens near or on Earth
The vastness of space: The universe is incredibly vast, with billions of galaxies and trillions of stars. Even if a significant fraction of these stars have planets that support life, the distances between stars are so great that it would be extremely difficult for any civilization to travel to other stars. The time required for technological development: It took billions of years for life on Earth to evolve to the point where we could develop advanced technology. It is possible that other civilizations have developed more quickly than us, but it is also possible that they are still in their early stages of development. The dangers of space travel: Space travel is dangerous, and even a highly developed civilization would be at risk of extinction if they attempted to travel to other stars. For example, they would need to protect themselves from the harmful radiation of space and the possibility of collisions with asteroids or comets. The lack of evidence: We have not found any definitiv...