It's an interesting question whether to ask about "laws" or "theories" in this context, because if I ask about "theories inconsistent with one another" then the

It's an interesting question whether to ask about "laws" or "theories" in this context, because if I ask about "theories inconsistent with one another" then there are probably hundreds of answers, but none of them are interesting because most theories are wrong. I was hoping to find examples of theories that are (a) popular, (b) haven't been proven wrong for at least several years. If there are contradictions between those and other, more established laws, then that's interesting. I was hoping this submission might attract at least one upvote so that it appears on the 'ask' page and some of HN's fine physicists might see it.