# Speed of light suddenly doubles -- what changes?

**URL:** <https://boards.straightdope.com/t/speed-of-light-suddenly-doubles-what-changes/653609>\
**Category:** Factual Questions\
**Created:** [March 22, 2013, 3:56am UTC](https://boards.straightdope.com/t/speed-of-light-suddenly-doubles-what-changes/653609 "2013-03-22T03:56:15Z")\
**Posts on this page:** 2\
**Page:** 3

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**Author:** ![Exapno\_Mapcase](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/exapno_mapcase/32/1051_2.png) [@Exapno\_Mapcase](https://boards.straightdope.com/u/Exapno_Mapcase)\
**Post date:** [March 27, 2013, 2:02am UTC](https://boards.straightdope.com/t/speed-of-light-suddenly-doubles-what-changes/653609/41 "2013-03-27T02:02:56Z")

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> [@squeegee](#):
>
> Wouldn’t our synapses fire faster, giving us superhuman intelligence, portending an end to war, aggression and reality television?

No, no, no, no, and would likely result in shorter attention spans and therefore more reality television.

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**Author:** ![cmyk](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/cmyk/32/3353_2.png) [@cmyk](https://boards.straightdope.com/u/cmyk)\
**Post date:** [March 27, 2013, 6:15pm UTC](https://boards.straightdope.com/t/speed-of-light-suddenly-doubles-what-changes/653609/42 "2013-03-27T18:15:48Z")

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**Learjeff** is correct. Redshift is a phenomena we detect, as observers, between relative velocities. The frequency of light is the observable thing being shifted.

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