this post was submitted on 11 Nov 2023
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xkcd

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xkcd #2853: Redshift (imgs.xkcd.com)
submitted 1 year ago by [email protected] to c/[email protected]
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https://xkcd.com/2853

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So do you have any plans for z=-0.000000000000045?

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[โ€“] [email protected] 5 points 1 year ago (1 children)

z values refer to red/blueshifts and correspond to time periods in the universe's history. In reality thats a vast oversimplification but given the way the comic is using z values, those two time periods are what they were intending to convey

[โ€“] [email protected] 1 points 1 year ago

Ok, cool that makes sense. I have a rough idea what redshift is, I just didn't read the title. Thanks!