science ๐ Why the universe looks way bigger than its age ๐คฏ
The observable universe is about 93 billion light-years across despite the universe being 13.8 billion years old. This apparent contradiction arises from treating distance as static during the universe's expansion. The 46.5 billion light-year radius is a present comoving distance, not a simple light-travel time. When the light began its journey, the source was much closer due to the early universe's small scale factor. Therefore, the expanding geometry dictates the final large distance observed today. ๐ญ