#10: The Absolute Boundary of the Cosmological Horizon
When we look into the depths of the cosmos, we find a boundary at approximately 46.5 billion light-years away. This marks the edge of our observable universe. As the universe expands, light takes time to reach us, so anything beyond this distance moves away faster than light, making it unreachable for us. It makes us wonder about the universe’s nature. Does it expand endlessly, loop back, or hide infinite alternate realities?
