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A comment on If the universe is 13.8B years old, how can we see 46B light years away? (2018). Parent comment

Re:If the universe is 13.8B years old, how can we see 46B li... by michaelmrose on Saturday December 07, 2019 @12:57PM (#21731572)
You aren't stationary and space itself is expanding.

The metaphor I normally see is a balloon being blown up.

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Re:If the universe is 13.8B years old, how can we see 46B li... by ianai on Saturday December 07, 2019 @01:05PM (#21731619)
Importantly, the expansion of the universe is necessary. Under special relativity two things could be moving at .9c toward one another and their velocities won’t somehow add to 1.8c in relative velocity. Light will still travel at c from one to the other.
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