of this region is about 14.26 gigaparsecs (46.5 billion light-years or 14.26 Gpc).

The word observable in this sense does not refer to the capability of modern technology to detect light or other information from an object, or whether there is anything to be detected. It refers to the physical limit created by the speed of light itself. No signal can travel faster than light and the universe has only existed for about 14 billion