[ELI5] If the beginning of the universe was 13B+ years ago, how is the boundry of the universe 46.5B ly away?

Question

[ELI5] If the beginning of the universe was 13B+ years ago, how is the boundry of the universe 46.5B ly away?

In: 7

Answer 1

Question: Are you asking, more specifically, how it isn’t further away or are you asking how it isn’t closer?