Do we need the relativity tag? Most questions using it are generally because it's a popular science question and the OP doesn't know which to use or because the OP used it along with general-relativity or special-relativity.
Why not get rid of it?
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asked Jul 18 '13 at 18:24
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3$\begingroup$ The recommended practice until now is explained in the corresponding wiki tags, i.e. the rel. tag is used for posts where both the GR and SR tag apply. $\endgroup$ – Qmechanic♦ Jul 18 '13 at 18:31
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3$\begingroup$ Please don't start retagging until consensus has been reached. $\endgroup$ – Manishearth Jul 19 '13 at 8:48
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1$\begingroup$ @Manishearth: Even for questions where the relevant tag (SR or GR) is already stated? Lie special-relativity, general-relativty, relativity? , $\endgroup$ – Abhimanyu Pallavi Sudhir Jul 19 '13 at 8:50
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2$\begingroup$ Doesn't matter, basically, if something is being discussed on meta, don't put unnecessary effort into implementing it until a decision has been reached. $\endgroup$ – Manishearth Jul 19 '13 at 8:52
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We have 103 questions tagged with only relativity
We have 9 questions tagged with general-relativity and relativity but not special-relativity
We have 16 questions tagged with special-relativity and relativity but not general-relativity
We have 10 questions tagged with all three. I've noticed that most of our relativity questions are about general relativity
The best solution here is to go through the 118 questions tagged relativity but not general-relativity, and look for ones without GR on them. Then merge.
I don't mind keeping the tag, either. FWIW it may be worth merging the SR and GR tags into relativity, but that may lead to a broad tag.
answered Jul 19 '13 at 9:00
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2$\begingroup$ The last option, merging everything into relativity , , isn't a good idea. GR questions are often very different from SR questions. And relativity is also a pretty vague tag. Like: Is Galilean Relativity also counted? Of course, someone can read the tag wiki, but the name should be more explanatory, in my opinion. , . . . . . $\endgroup$ – Abhimanyu Pallavi Sudhir Jul 19 '13 at 9:03
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1$\begingroup$ @Dimension10 I thought so too, I just wanted to throw it out there. A better idea is to merge relativity into one of the two sub-tags. (after some pre-merge retagging) $\endgroup$ – Manishearth Jul 19 '13 at 9:05
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I'd be fine with removing it. I've always been somewhat in favor of getting rid of this tag (just not enough to do anything about it), because posts which both general-relativity and special-relativity apply to can just be tagged with both of those, and otherwise we just use one or the other as appropriate.
The potentially difficult thing about this will be going through all the questions tagged relativity and sorting them out into GR or SR.
